{"title":"FMF Factory 4.1 RCT, Megabomb, Powerbomb, Powercore 4, \u0026 Q4 4-Stroke Performance Exhaust – Moto-House MX","description":"\u003ch2\u003e\u003cb\u003eFMF 4-Stroke Performance Exhaust Systems, Mufflers, and Headers | Moto-House MX\u003c\/b\u003e\u003c\/h2\u003e\n\n\u003cp\u003eAt \u003cstrong\u003eMoto-House MX\u003c\/strong\u003e, we are the go-to destination for \u003cstrong\u003eperformance parts\u003c\/strong\u003e, \u003cstrong\u003eperformance kits\u003c\/strong\u003e, and \u003cstrong\u003eaccessories\u003c\/strong\u003e for the \u003cstrong\u003eFMF 4-Stroke\u003c\/strong\u003e exhaust lineup. With over 40 years of expertise in optimizing motocross and off-road bikes, our experienced team is dedicated to helping you take your \u003cstrong\u003eFMF 4-Stroke\u003c\/strong\u003e vehicle setup to the next level.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eFMF 4-Stroke\u003c\/strong\u003e collection delivers the ultimate upgrade to improve performance on 4-stroke motorcycles, dirt bikes, enduro bikes, ATVs, and pit bikes, maximizing horsepower and torque across the entire RPM range. Our collection features top-tier hardware from \u003cstrong\u003eFMF Racing\u003c\/strong\u003e — providing everything you need to fine-tune your bike's performance.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003eFMF 4-Stroke Mufflers \u0026amp; Headers Lineup\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory 4.1 RCT:\u003c\/strong\u003e FMF’s elite flagship muffler delivering massive power gains, crisp throttle response, and weight reduction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowercore 4:\u003c\/strong\u003e High-end track and trail performance, incredible horsepower, and rugged durability without a premium price.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ4 Silencer:\u003c\/strong\u003e Engineered to meet strict off-road sound restrictions on public lands without choking out horsepower.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMegabomb Header:\u003c\/strong\u003e Patented design mimicking a long header's low-end pull with a short header's top-end scream.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowerbomb Header:\u003c\/strong\u003e Uses a unique expansion module to increase exhaust flow and deliver a major mid-range torque boost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhether you're looking to boost engine power, improve handling, or enhance overall reliability, \u003cstrong\u003eMoto-House MX\u003c\/strong\u003e has the performance parts and accessories you need. Our selection of \u003cstrong\u003eFMF 4-Stroke upgrades\u003c\/strong\u003e ensures that your bike stays ahead of the competition on every ride.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eFMF 4-Stroke\u003c\/strong\u003e exhaust line optimizes performance on common machinery like the \u003cstrong\u003eKTM 250SX\u003c\/strong\u003e, \u003cstrong\u003eKTM 450SX\u003c\/strong\u003e, \u003cstrong\u003eKTM 450EXC\u003c\/strong\u003e, \u003cstrong\u003eBeta 480 RR\u003c\/strong\u003e, \u003cstrong\u003eYamaha YZ450F\u003c\/strong\u003e, \u003cstrong\u003eHonda CRF250R\u003c\/strong\u003e, and \u003cstrong\u003eKawasaki KX450\u003c\/strong\u003e. This premium lineup competes directly with exhaust systems from brands like \u003cstrong\u003ePro Circuit\u003c\/strong\u003e and \u003cstrong\u003eYoshimura\u003c\/strong\u003e. Our performance packages are designed to keep your FMF 4-Stroke running out front of the competition while staying reliable and budget-friendly.\u003c\/p\u003e\n\n\u003cp\u003eShop trusted setups from \u003cstrong\u003eFMF Racing\u003c\/strong\u003e — all available with fast shipping from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003eExplore our full collection of \u003cstrong\u003eFMF 4-Stroke performance kits, parts, and accessories\u003c\/strong\u003e today and elevate your bike's performance with \u003cstrong\u003eMoto-House MX\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003ci\u003e\u003cb\u003eMoto-House MX – Choice of Champions\u003c\/b\u003e – is located in Clermont\/Montverde, FL. We are the best shop in Central Florida with lightning-fast shipping.\u003c\/i\u003e\u003c\/p\u003e","products":[{"product_id":"fmf-044443-slip-on-muffler-yamaha-yz450f-yz450fx-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 044443 — Yamaha YZ450F \/ YZ450FX 2018-2026","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 044443 — Yamaha YZ450F \/ YZ450FX 2018-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the pinnacle of off-road exhaust technology, designed specifically for riders who demand \u003cstrong\u003emaximum power output\u003c\/strong\u003e without compromising on sound compliance. Utilizing FMF’s patented Resonance Chamber Technology (RCT), this slip-on features a unique core shape that effectively lowers decibel levels while significantly enhancing exhaust flow for a broader, more usable power spread across the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eEngineered with FMF’s signature Factory Forward design, this muffler helps centralize mass on your Yamaha, improving handling and reducing vulnerability to crash damage. Built from high-quality stainless steel and aluminum, and finished with a premium carbon fiber end cap, this system is as durable as it is lightweight. It’s the ultimate performance upgrade for your YZ450F or YZ450FX, whether you are racing on the track or conquering the trails.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePatented Resonance Chamber Technology (RCT) for optimized power and sound\u003c\/li\u003e\n\u003cli\u003eInternal chamber ducts increase volume for improved exhaust flow and power delivery\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass to improve bike handling\u003c\/li\u003e\n\u003cli\u003eInnovative carbon fiber end cap allows for easy installation of tuning inserts or spark arrestors\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for AMA\/FIM sound compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2026\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2025\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ450FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this slip-on require me to remap my ECU?\u003c\/strong\u003e\u003cbr\u003eA: While the bike may run with the stock mapping, we highly recommend an ECU remap or fuel controller adjustment to fully realize the power gains and ensure optimal engine temperatures with this high-flow system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this system compatible with my stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the FMF Factory 4.1 RCT slip-on is designed to be fully compatible with both the stock OEM header and FMF aftermarket headers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When installing a new slip-on, always check your exhaust port gaskets. A worn or crushed gasket is the #1 cause of backfiring on deceleration. If the old one looks flat or scorched, spend the few dollars to replace it for a perfect, air-tight seal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eYamaha YZ450F Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eYamaha YZ450FX Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":39775242125395,"sku":"044443","price":584.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-044443-2018-2025-yamaha-yz450f-213020.jpg?v=1735341933"},{"product_id":"fmf-042369-slip-on-muffler-kawasaki-kx450f-kx450x-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 042369 — Kawasaki KX450F \/ KX450X 2019-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 042369 — Kawasaki KX450F \/ KX450X 2019-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e represents the pinnacle of exhaust performance, engineered to help your Kawasaki KX450F or KX450X achieve \u003cstrong\u003emaximum power output\u003c\/strong\u003e while meeting strict sound standards. Using FMF’s patented Resonance Chamber Technology (RCT), this slip-on features a unique core shape that maintains high power levels while effectively managing decibels for a smoother, stronger pull through the entire power band.\u003c\/p\u003e\n\u003cp\u003eDesigned with FMF’s proprietary Factory Forward engineering, this system is positioned to centralize mass on your bike, significantly improving balance and handling while reducing the risk of damage during a crash. Crafted from premium stainless steel and aluminum, and finished with a durable, lightweight carbon fiber end cap, this system is built to survive the rigors of racing and trail riding alike.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePatented Resonance Chamber Technology (RCT) for optimized power and sound\u003c\/li\u003e\n\u003cli\u003eInternal chamber ducts increase volume to promote improved exhaust flow\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering shifts mass closer to the center for superior bike handling\u003c\/li\u003e\n\u003cli\u003eInnovative carbon fiber end cap allows for quick installation of spark arrestors or tuning tips\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for AMA\/FIM sound compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2021\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKX450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKX450X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKX450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler come with a spark arrestor installed?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the spark arrestor is included, and the innovative end cap design allows you to install or remove it easily using just four screws.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this with my stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Absolutely. The Factory 4.1 RCT is designed to be fully compatible with either your stock OEM header or an aftermarket FMF performance header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When upgrading your exhaust, remember to check your air filter. An exhaust that flows more air requires your engine to be able to pull in more air as well. Always ensure your air filter is clean and properly oiled to maximize the performance gains of your new FMF system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-kx450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eKawasaki KX450F Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKawasaki 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003eMotorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":39775264211027,"sku":"042369","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2019-2023-kawasaki-kx450f-042369-904559.jpg?v=1735341938"},{"product_id":"fmf-045628-slip-on-muffler-ktm-husqvarna-gasgas-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the definitive performance upgrade for your 350cc or 450cc machine. Utilizing FMF’s patented \u003cstrong\u003eResonance Chamber Technology\u003c\/strong\u003e (RCT), this muffler features a proprietary core shape that minimizes sound output while unlocking \u003cstrong\u003emaximum power\u003c\/strong\u003e across the entire RPM range. It is engineered to give you the competitive edge on the track or the trail.\u003c\/p\u003e\n\u003cp\u003eBuilt with FMF’s signature Factory Forward engineering, this system is designed to centralize mass, significantly improving your bike's handling characteristics and making the unit less susceptible to crash damage. Constructed from lightweight aluminum and finished with a premium carbon fiber end cap, it offers durability without unnecessary weight, ensuring your bike remains agile and responsive under the most demanding conditions.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePatented Resonance Chamber Technology (RCT) for optimized sound and power delivery\u003c\/li\u003e\n\u003cli\u003eAdvanced internal chamber ducts increase volume for superior exhaust flow\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering improves mass centralization for enhanced handling\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end cap design allows for tool-free installation of spark arrestors or tuning tips\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for total sound compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e350 SX-F, 350 XC-F, 450 XC-F, 450 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e450 SX-F Factory Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC350, FC450, FX450, FX350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 350F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eEX 350F, MC 450F, EX 450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler work with the stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is designed to be a direct slip-on replacement that works perfectly with either your factory OEM header or an aftermarket FMF header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the spark arrestor easy to remove for closed-course riding?\u003c\/strong\u003e\u003cbr\u003eA: It is. The innovative end cap design allows for the removal of the spark arrestor or the installation of different tuning tips by simply unscrewing four bolts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e High-performance exhausts can lean out your fuel mixture. After installing this muffler, I highly recommend checking your spark plug color or having your ECU re-mapped. Ensuring your fuel map matches the increased exhaust flow will prevent your engine from running hot and will give you the crisp, immediate throttle response you are looking for.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKTM 4-Stroke Performance Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc-450-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eGas Gas 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":39775316803667,"sku":"045628","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2019-2022-husqvarna-fc-450-045628-748990.jpg?v=1735341941"},{"product_id":"fmf-045628-slip-on-muffler-ktm-husqvarna-gasgas-2023-2025","title":"FMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct DescriptiFMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023on\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the definitive performance upgrade for your 350cc or 450cc machine. Utilizing FMF’s patented \u003cstrong\u003eResonance Chamber Technology\u003c\/strong\u003e (RCT), this muffler features a proprietary core shape that minimizes sound output while unlocking \u003cstrong\u003emaximum power\u003c\/strong\u003e across the entire RPM range. It is engineered to give you the competitive edge on the track or the trail.\u003c\/p\u003e\n\u003cp\u003eBuilt with FMF’s signature Factory Forward engineering, this system is designed to centralize mass, significantly improving your bike's handling characteristics and making the unit less susceptible to crash damage. Constructed from lightweight aluminum and finished with a premium carbon fiber end cap, it offers durability without unnecessary weight, ensuring your bike remains agile and responsive under the most demanding conditions.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePatented Resonance Chamber Technology (RCT) for optimized sound and power delivery\u003c\/li\u003e\n\u003cli\u003eAdvanced internal chamber ducts increase volume for superior exhaust flow\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering improves mass centralization for enhanced handling\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end cap design allows for tool-free installation of spark arrestors or tuning tips\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for total sound compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e350 SX-F, 350 XC-F, 450 XC-F, 450 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e450 SX-F Factory Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC350, FC450, FX450, FX350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 350F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eEX 350F, MC 450F, EX 450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler work with the stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is designed to be a direct slip-on replacement that works perfectly with either your factory OEM header or an aftermarket FMF header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the spark arrestor easy to remove for closed-course riding?\u003c\/strong\u003e\u003cbr\u003eA: It is. The innovative end cap design allows for the removal of the spark arrestor or the installation of different tuning tips by simply unscrewing four bolts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e High-performance exhausts can lean out your fuel mixture. After installing this muffler, I highly recommend checking your spark plug color or having your ECU re-mapped. Ensuring your fuel map matches the increased exhaust flow will prevent your engine from running hot and will give you the crisp, immediate throttle response you are looking for.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKTM 4-Stroke Performance Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc-450-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eGas Gas 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":39775325323347,"sku":"045628","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2019-2022-husqvarna-fc-350-045628-225368.jpg?v=1735341948"},{"product_id":"fmf-powercore-4-slip-on-045628-ktm-husky-gasgas","title":"FMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the definitive performance upgrade for your 350cc or 450cc machine. Utilizing FMF’s patented \u003cstrong\u003eResonance Chamber Technology\u003c\/strong\u003e (RCT), this muffler features a proprietary core shape that minimizes sound output while unlocking \u003cstrong\u003emaximum power\u003c\/strong\u003e across the entire RPM range. It is engineered to give you the competitive edge on the track or the trail.\u003c\/p\u003e\n\u003cp\u003eBuilt with FMF’s signature Factory Forward engineering, this system is designed to centralize mass, significantly improving your bike's handling characteristics and making the unit less susceptible to crash damage. Constructed from lightweight aluminum and finished with a premium carbon fiber end cap, it offers durability without unnecessary weight, ensuring your bike remains agile and responsive under the most demanding conditions.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePatented Resonance Chamber Technology (RCT) for optimized sound and power delivery\u003c\/li\u003e\n\u003cli\u003eAdvanced internal chamber ducts increase volume for superior exhaust flow\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering improves mass centralization for enhanced handling\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end cap design allows for tool-free installation of spark arrestors or tuning tips\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for total sound compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e350 SX-F, 350 XC-F, 450 XC-F, 450 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e450 SX-F Factory Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC350, FC450, FX450, FX350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 350F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eEX 350F, MC 450F, EX 450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler work with the stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is designed to be a direct slip-on replacement that works perfectly with either your factory OEM header or an aftermarket FMF header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the spark arrestor easy to remove for closed-course riding?\u003c\/strong\u003e\u003cbr\u003eA: It is. The innovative end cap design allows for the removal of the spark arrestor or the installation of different tuning tips by simply unscrewing four bolts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e High-performance exhausts can lean out your fuel mixture. After installing this muffler, I highly recommend checking your spark plug color or having your ECU re-mapped. Ensuring your fuel map matches the increased exhaust flow will prevent your engine from running hot and will give you the crisp, immediate throttle response you are looking for.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKTM 4-Stroke Performance Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc-450-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eGas Gas 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":39775331418195,"sku":"045628","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2019-2022-ktm-450-sx-f-045628-207752.jpg?v=1735341933"},{"product_id":"slip-on-muffler-ktm-husqvarna-gasgas-fmf-045628","title":"FMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 350-450cc 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the definitive performance upgrade for your 350cc or 450cc machine. Utilizing FMF’s patented \u003cstrong\u003eResonance Chamber Technology\u003c\/strong\u003e (RCT), this muffler features a proprietary core shape that minimizes sound output while unlocking \u003cstrong\u003emaximum power\u003c\/strong\u003e across the entire RPM range. It is engineered to give you the competitive edge on the track or the trail.\u003c\/p\u003e\n\u003cp\u003eBuilt with FMF’s signature Factory Forward engineering, this system is designed to centralize mass, significantly improving your bike's handling characteristics and making the unit less susceptible to crash damage. Constructed from lightweight aluminum and finished with a premium carbon fiber end cap, it offers durability without unnecessary weight, ensuring your bike remains agile and responsive under the most demanding conditions.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePatented Resonance Chamber Technology (RCT) for optimized sound and power delivery\u003c\/li\u003e\n\u003cli\u003eAdvanced internal chamber ducts increase volume for superior exhaust flow\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering improves mass centralization for enhanced handling\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end cap design allows for tool-free installation of spark arrestors or tuning tips\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for total sound compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e350 SX-F, 350 XC-F, 450 XC-F, 450 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e450 SX-F Factory Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC350, FC450, FX450, FX350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 350F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eEX 350F, MC 450F, EX 450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler work with the stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is designed to be a direct slip-on replacement that works perfectly with either your factory OEM header or an aftermarket FMF header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the spark arrestor easy to remove for closed-course riding?\u003c\/strong\u003e\u003cbr\u003eA: It is. The innovative end cap design allows for the removal of the spark arrestor or the installation of different tuning tips by simply unscrewing four bolts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e High-performance exhausts can lean out your fuel mixture. After installing this muffler, I highly recommend checking your spark plug color or having your ECU re-mapped. Ensuring your fuel map matches the increased exhaust flow will prevent your engine from running hot and will give you the crisp, immediate throttle response you are looking for.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKTM 4-Stroke Performance Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc-450-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eGas Gas 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":39775339282515,"sku":"045628","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2019-2022-ktm-350-sx-f-045628-837560.jpg?v=1735341946"},{"product_id":"fmf-045628-factory-4-1-rct-slip-on-muffler-ktm-husqvarna-gasgas-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 2018-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the ultimate exhaust upgrade for the discerning rider. Featuring FMF’s patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler utilizes a specialized core shape to significantly lower decibel levels while actually increasing power output. By maximizing internal volume through advanced ducting, the RCT system ensures smooth, potent power gains throughout the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eEngineered with \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e, the muffler is positioned closer to the engine to centralize mass, improving handling and offering better protection against crash damage. This high-performance slip-on is constructed with a durable aluminum canister and a premium carbon fiber end cap, blending lightweight materials with professional-grade durability. It arrives ready for any environment, including a QuietCore 94 dB insert and a spark arrestor for trail compliance.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology (RCT) lowers sound output while boosting power\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering design centralizes mass for improved handling\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum canister with high-strength carbon fiber end cap\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for maximum versatility\u003c\/li\u003e\n\u003cli\u003eCompatible with both stock headpipes and FMF performance headers\u003c\/li\u003e\n\u003cli\u003eProudly made in the U.S.A. and meets AMA\/FIM sound requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 350F \/ EX 350F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 450F \/ EX 450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC\/FX 350 \u0026amp; 450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e350\/450 SX-F \u0026amp; XC-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e450 SX-F Factory Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is it easy to remove the spark arrestor?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the rear end cap is designed for quick access, requiring the removal of only four screws to swap or remove the spark arrestor and tuning tip inserts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this improve my bike's throttle response?\u003c\/strong\u003e\u003cbr\u003eA: Absolutely. The combination of RCT technology and reduced weight over the stock muffler helps the engine rev more freely and improves overall throttle response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e To keep your Factory 4.1 RCT performing at its best, plan on repacking the muffler every 20–30 hours of hard riding. A burnt-out packing will not only make the bike louder but will also negatively impact the power delivery and can eventually lead to casing damage from excessive internal heat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKTM 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eHusqvarna 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Lubricants\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40178427691091,"sku":"045628","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2021-2022-gas-gas-mc-450f-045628-906977.jpg?v=1735341941"},{"product_id":"fmf-factory-4-1-rct-slip-on-muffler-045628-ktm-husqvarna-gasgas","title":"FMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 2018-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045628 — KTM \/ Husqvarna \/ GasGas 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the ultimate exhaust upgrade for the discerning rider. Featuring FMF’s patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler utilizes a specialized core shape to significantly lower decibel levels while actually increasing power output. By maximizing internal volume through advanced ducting, the RCT system ensures smooth, potent power gains throughout the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eEngineered with \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e, the muffler is positioned closer to the engine to centralize mass, improving handling and offering better protection against crash damage. This high-performance slip-on is constructed with a durable aluminum canister and a premium carbon fiber end cap, blending lightweight materials with professional-grade durability. It arrives ready for any environment, including a QuietCore 94 dB insert and a spark arrestor for trail compliance.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology (RCT) lowers sound output while boosting power\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering design centralizes mass for improved handling\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum canister with high-strength carbon fiber end cap\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for maximum versatility\u003c\/li\u003e\n\u003cli\u003eCompatible with both stock headpipes and FMF performance headers\u003c\/li\u003e\n\u003cli\u003eProudly made in the U.S.A. and meets AMA\/FIM sound requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 350F \/ EX 350F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 450F \/ EX 450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC\/FX 350 \u0026amp; 450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e350\/450 SX-F \u0026amp; XC-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e450 SX-F Factory Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is it easy to remove the spark arrestor?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the rear end cap is designed for quick access, requiring the removal of only four screws to swap or remove the spark arrestor and tuning tip inserts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this improve my bike's throttle response?\u003c\/strong\u003e\u003cbr\u003eA: Absolutely. The combination of RCT technology and reduced weight over the stock muffler helps the engine rev more freely and improves overall throttle response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e To keep your Factory 4.1 RCT performing at its best, plan on repacking the muffler every 20–30 hours of hard riding. A burnt-out packing will not only make the bike louder but will also negatively impact the power delivery and can eventually lead to casing damage from excessive internal heat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKTM 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eHusqvarna 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Lubricants\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40178430083155,"sku":"045628","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2021-2022-gas-gas-mc-350f-045628-271102.jpg?v=1735341934"},{"product_id":"fmf-042374-factory-4-1-rct-slip-on-muffler-kawasaki-kx250-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 042374 — Kawasaki KX250 2019-2020","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 042374 — Kawasaki KX250 2019-2020\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the ultimate performance upgrade for your 2019-2020 Kawasaki KX250. Utilizing FMF's patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this exhaust system features a sophisticated core shape that effectively lowers decibel levels while actually boosting overall power output. The internal ducting system increases exhaust volume for improved flow, delivering noticeable power gains throughout the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eDesigned with \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e, the muffler is positioned closer to the engine to centralize mass, significantly improving your bike's handling and protecting the unit from crash damage. Built with a durable aluminum canister and a premium carbon fiber end cap, this muffler is lightweight and designed to last. Each unit includes a QuietCore 94 dB insert and a spark arrestor, ensuring you have the performance you need for the track and the compliance required for the trails.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology (RCT) provides maximum power with lower decibels\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass for better handling and durability\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum canister construction with a premium carbon fiber end cap\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for trail versatility\u003c\/li\u003e\n\u003cli\u003eCompatible with your stock header or an upgraded FMF performance header\u003c\/li\u003e\n\u003cli\u003eProudly made in the U.S.A. and meets AMA\/FIM sound standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKX250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this muffler difficult to install?\u003c\/strong\u003e\u003cbr\u003eA: No, the 4.1 RCT slip-on is designed to bolt directly onto your stock mounting points and header, making for a straightforward installation process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I check the spark arrestor?\u003c\/strong\u003e\u003cbr\u003eA: If you ride in environments that require spark arrestors, we recommend checking the mesh screen periodically for any debris or buildup to maintain optimal flow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e To maximize the life of your FMF exhaust, keep a close eye on the muffler packing. When the exhaust note starts to get significantly louder, it's time for a repack. Fresh packing keeps your power consistent, protects your canister from excess heat, and ensures you stay well within track sound requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKawasaki 4-Stroke Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eEssential Motorcycle Tools\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Lubricants\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40178434801747,"sku":"042374","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-2019-2020-kawasaki-kx250f-042374-999303.jpg?v=1735341940"},{"product_id":"fmf-044453-factory-4-1-rct-slip-on-muffler-yamaha-yz250f-yz250fx-wr250f-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 044453 — Yamaha YZ250F \/ YZ250FX \/ WR250F 2019-2026","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 044453 — Yamaha YZ250F \/ YZ250FX \/ WR250F 2019-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the ultimate performance upgrade for your Yamaha 250cc machine. Utilizing FMF's patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this exhaust system features a sophisticated core shape that effectively lowers decibel levels while maximizing power output. The internal ducting system increases exhaust volume for improved flow, delivering significant power gains throughout the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eDesigned with \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e, the muffler is positioned closer to the engine to centralize mass, significantly improving your bike's handling and protecting the unit from crash damage. Built with a durable stainless steel\/aluminum canister and a premium carbon fiber end cap, this muffler is lightweight and built to withstand the rigors of racing. Each unit includes a QuietCore 94 dB insert and a spark arrestor, ensuring performance for the track and compliance for the trails.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology (RCT) provides maximum power with lower decibels\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass for better handling and durability\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum\/stainless steel canister with a premium carbon fiber end cap\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for trail versatility\u003c\/li\u003e\n\u003cli\u003eCompatible with your stock header or an upgraded FMF performance header\u003c\/li\u003e\n\u003cli\u003eProudly made in the U.S.A. and meets AMA\/FIM sound standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2023-2024\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eWR250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2020-2026\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ250FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2026\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this muffler difficult to install?\u003c\/strong\u003e\u003cbr\u003eA: No, the 4.1 RCT slip-on is designed to bolt directly onto your stock mounting points and header, making for a straightforward installation process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I check the spark arrestor?\u003c\/strong\u003e\u003cbr\u003eA: If you ride in environments that require spark arrestors, we recommend checking the mesh screen periodically for any debris or buildup to maintain optimal flow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e To maximize the life of your FMF exhaust, keep a close eye on the muffler packing. When the exhaust note starts to get significantly louder, it's time for a repack. Fresh packing keeps your power consistent, protects your canister from excess heat, and ensures you stay well within track sound requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 4-Stroke Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eEssential Motorcycle Tools\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Lubricants\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40178440274003,"sku":"044453","price":584.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-slip-on-carbon-fiber-end-cap-044453-2019-2023-yamaha-yz250f-yz250fx-727784.jpg?v=1735341937"},{"product_id":"fmf-041611-slip-on-muffler-honda-crf250r-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 041611 — Honda CRF250R 2022-2024","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 041611 — Honda CRF250R 2022-2024\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUnlock the true potential of your engine with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Engineered for riders who demand championship-level performance, the Factory 4.1 RCT features FMF's patented \u003cstrong\u003eResonance Chamber Technology\u003c\/strong\u003e. This innovative core shape effectively lowers decibels while ensuring maximum power output, giving you the best of both worlds on the track or trail.\u003c\/p\u003e\n\u003cp\u003eThe system is built using FMF’s Factory Forward Engineering, which centralizes mass to improve bike handling and makes the unit less prone to crash damage. With a durable \u003cstrong\u003eblue anodized titanium body\u003c\/strong\u003e and a lightweight \u003cstrong\u003ecarbon fiber end cap\u003c\/strong\u003e, this muffler not only performs at a high level but also offers a professional, factory-ready look for your Honda CRF250R. It is compatible with your stock header or can be paired with an FMF header for even greater gains.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology (RCT) for maximum power and sound control\u003c\/li\u003e\n\u003cli\u003eLightweight titanium construction with high-strength carbon fiber end cap\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering design for improved mass centralization\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for versatility\u003c\/li\u003e\n\u003cli\u003eCompatible with both stock and FMF aftermarket headers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2022-2024\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHonda\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eCRF250R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler come with a spark arrestor?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it includes both the spark arrestor and the QuietCore 94 dB insert, making it compliant for various riding environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this with my stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Absolutely. The Factory 4.1 RCT is designed to be compatible with both the stock OEM header and FMF performance headers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When installing a slip-on, always use a high-temp silicone sealant on the slip-joint connection. It prevents exhaust leaks, which can cause erratic idling or decel popping, and it stops grit from working its way into the junction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/honda-crf250r-performance-parts-kits-and-accessories-moto-house-mx\"\u003eHonda CRF250R Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/honda-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eHonda 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Coolant\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40582683099219,"sku":"041611","price":809.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-041611-2022-2024-honda-crf250r-crf250rx-413426.jpg?v=1741065416"},{"product_id":"fmf-045633-factory-4-1-rct-slip-on-muffler-gas-gas-husqvarna-ktm-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 045633 — Gas Gas \/ Husqvarna \/ KTM 250cc 2019-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045633 — Gas Gas \/ Husqvarna \/ KTM 250cc 2019-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e represents the pinnacle of exhaust engineering for your motocross or off-road bike. Built with FMF’s patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler utilizes a unique core shape that effectively lowers decibel levels without sacrificing raw power. The result is a substantial increase in power throughout the entire RPM range, giving you the competitive edge you need on the track.\u003c\/p\u003e\n\u003cp\u003eDesigned with FMF's signature Factory Forward Engineering, this muffler helps centralize mass, improving your bike’s handling while remaining significantly more resistant to crash damage. Whether you are racing professionally or hitting the trails, this blue anodized titanium muffler with a premium carbon fiber end cap offers unmatched durability, performance, and style.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology reduces decibels while maximizing overall power output.\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass for improved bike handling and durability.\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end cap design allows for quick installation of tuning tips or spark arrestors.\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for versatility in racing and off-road riding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eEX 250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e250 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e250 XC-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit my stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, this FMF Factory 4.1 RCT slip-on is designed to be compatible with your stock header or an FMF aftermarket header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler meet race sound regulations?\u003c\/strong\u003e\u003cbr\u003eA: Absolutely. It is designed to meet both AMA and FIM sound requirements, and it even includes a QuietCore 94 dB insert for sensitive riding areas.\u003c\/p\u003e\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Don't forget to keep your exhaust packing fresh! A high-performance pipe like this will lose its power gains and start sounding harsh if the packing is blown out. I recommend repacking your muffler every 10–15 hours of hard riding to keep the bike pulling strong and quiet. Also, whenever you install a new slip-on, reset your ECU or check your fuel mapping—a slight lean condition can negate the power gains of your new pipe.\u003c\/p\u003e\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-250-sx-f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eKTM 250 SX-F Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc250-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna FC 250 Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-mc-250f-performance-parts-and-accessories-moto-house-mx\"\u003eGas Gas MC 250F Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773728567379,"sku":"045633","price":769.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-045633-2021-2023-gas-gas-mc-250f-and-ex-250f-616458.jpg?v=1735343380"},{"product_id":"fmf-045633-factory-4-1-rct-slip-on-muffler-gasgas-husqvarna-ktm-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 045633 — Gas Gas \/ Husqvarna \/ KTM 250cc 2019-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045633 — Gas Gas \/ Husqvarna \/ KTM 250cc 2019-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e represents the pinnacle of exhaust engineering for your motocross or off-road bike. Built with FMF’s patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler utilizes a unique core shape that effectively lowers decibel levels without sacrificing raw power. The result is a substantial increase in power throughout the entire RPM range, giving you the competitive edge you need on the track.\u003c\/p\u003e\n\u003cp\u003eDesigned with FMF's signature Factory Forward Engineering, this muffler helps centralize mass, improving your bike’s handling while remaining significantly more resistant to crash damage. Whether you are racing professionally or hitting the trails, this blue anodized titanium muffler with a premium carbon fiber end cap offers unmatched durability, performance, and style.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology reduces decibels while maximizing overall power output.\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass for improved bike handling and durability.\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end cap design allows for quick installation of tuning tips or spark arrestors.\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for versatility in racing and off-road riding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eEX 250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e250 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e250 XC-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit my stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, this FMF Factory 4.1 RCT slip-on is designed to be compatible with your stock header or an FMF aftermarket header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler meet race sound regulations?\u003c\/strong\u003e\u003cbr\u003eA: Absolutely. It is designed to meet both AMA and FIM sound requirements, and it even includes a QuietCore 94 dB insert for sensitive riding areas.\u003c\/p\u003e\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Don't forget to keep your exhaust packing fresh! A high-performance pipe like this will lose its power gains and start sounding harsh if the packing is blown out. I recommend repacking your muffler every 10–15 hours of hard riding to keep the bike pulling strong and quiet. Also, whenever you install a new slip-on, reset your ECU or check your fuel mapping—a slight lean condition can negate the power gains of your new pipe.\u003c\/p\u003e\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-250-sx-f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eKTM 250 SX-F Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc250-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna FC 250 Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-mc-250f-performance-parts-and-accessories-moto-house-mx\"\u003eGas Gas MC 250F Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773739053139,"sku":"045633","price":769.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-045633-2019-2022-husqvarna-fc-250-592000.jpg?v=1735343383"},{"product_id":"fmf-factory-4-1-rct-slip-on-muffler-ktm-husqvarna-gasgas","title":"FMF Factory 4.1 RCT Slip-On Muffler 045633 — Gas Gas \/ Husqvarna \/ KTM 250cc 2019-2023","description":"\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045633 — Gas Gas \/ Husqvarna \/ KTM 250cc 2019-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e represents the pinnacle of exhaust engineering for your motocross or off-road bike. Built with FMF’s patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler utilizes a unique core shape that effectively lowers decibel levels without sacrificing raw power. The result is a substantial increase in power throughout the entire RPM range, giving you the competitive edge you need on the track.\u003c\/p\u003e\n\u003cp\u003eDesigned with FMF's signature Factory Forward Engineering, this muffler helps centralize mass, improving your bike’s handling while remaining significantly more resistant to crash damage. Whether you are racing professionally or hitting the trails, this blue anodized titanium muffler with a premium carbon fiber end cap offers unmatched durability, performance, and style.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eResonance Chamber Technology reduces decibels while maximizing overall power output.\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass for improved bike handling and durability.\u003c\/li\u003e\n\u003cli\u003eCarbon fiber end cap design allows for quick installation of tuning tips or spark arrestors.\u003c\/li\u003e\n\u003cli\u003eIncludes QuietCore 94 dB insert and spark arrestor for versatility in racing and off-road riding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eEX 250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2023\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eMC 250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eFC 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e250 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKTM\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e250 XC-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit my stock header pipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes, this FMF Factory 4.1 RCT slip-on is designed to be compatible with your stock header or an FMF aftermarket header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler meet race sound regulations?\u003c\/strong\u003e\u003cbr\u003eA: Absolutely. It is designed to meet both AMA and FIM sound requirements, and it even includes a QuietCore 94 dB insert for sensitive riding areas.\u003c\/p\u003e\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Don't forget to keep your exhaust packing fresh! A high-performance pipe like this will lose its power gains and start sounding harsh if the packing is blown out. I recommend repacking your muffler every 10–15 hours of hard riding to keep the bike pulling strong and quiet. Also, whenever you install a new slip-on, reset your ECU or check your fuel mapping—a slight lean condition can negate the power gains of your new pipe.\u003c\/p\u003e\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/ktm-250-sx-f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eKTM 250 SX-F Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc250-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna FC 250 Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-mc-250f-performance-parts-and-accessories-moto-house-mx\"\u003eGas Gas MC 250F Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773742821459,"sku":"045633","price":769.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-045633-2019-2022-ktm-250-sx-f-158131.jpg?v=1735343374"},{"product_id":"fmf-factory-4-1-rct-slip-on-muffler-ktm-husqvarna-gasgas-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 045629 — GasGas \/ Husqvarna \/ KTM 350-450 2018-2023","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045629 — GasGas \/ Husqvarna \/ KTM 350-450 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUnlock the true potential of your 350 or 450cc machine with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Engineered to be the absolute pinnacle of FMF exhaust technology, the \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e utilizes a unique, patented core shape that significantly lowers decibels while actually increasing power output throughout the entire RPM range. Whether you are attacking a supercross track or navigating technical enduro terrain, this muffler delivers the smooth, tractable power you need.\u003c\/p\u003e\n\u003cp\u003eCrafted from premium blue anodized titanium and finished with a sleek carbon fiber end cap, this muffler is designed to withstand the harshest off-road conditions while reducing overall bike weight. FMF's \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the muffler closer to the center of the bike, effectively centralizing mass for better handling and reduced vulnerability to crash damage. This is a top-tier performance upgrade for riders who refuse to compromise on quality or results.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology maintains maximum power while reducing overall sound output.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases volume for improved exhaust flow and enhanced mid-to-top end power.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering centralizes mass for better handling and crash resistance.\u003c\/li\u003e\n  \u003cli\u003eVersatile end cap design enables easy installation of spark arrestors or sound-tuning inserts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2022-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eMC 350F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eEX 350F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eMC 450F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eEX 450F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFC 350\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFC 450\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFX 450\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFX 350\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e350 SX-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 XC-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e350 XC-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 SX-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2020\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 SX-F Factory Edition\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this slip-on affect my bike's sound level?\u003c\/strong\u003e\u003cbr\u003e\nA: It is designed to meet AMA\/FIM sound requirements. It includes a QuietCore 94 dB insert for sensitive areas, ensuring you can ride at top performance without being excessively loud.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this difficult to install?\u003c\/strong\u003e\u003cbr\u003e\nA: Not at all. As a slip-on system, it is designed for a straightforward installation onto your stock header or an FMF header, utilizing the factory mounting points.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Since you're running a high-output 350 or 450, keep an eye on your muffler's packing condition. These larger displacement engines push more exhaust volume and heat, which will break down packing material faster than smaller bikes. If the bike starts to sound raspy or loses that crisp throttle response, replace the packing immediately. A fresh repacking job is the cheapest way to maintain peak performance and keep the exhaust note at legal decibel levels.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/moto-house-mx-performance-package-performance-upgrades-engine-mods-accessories-for-ktm-450-sx-f\"\u003eKTM 450 SX-F Performance Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc-350-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna FC 350 Performance Parts\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-mc-350f-performance-parts-and-accessories-moto-house-mx\"\u003eGas Gas MC 350F Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 045629\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"045629\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for GasGas, Husqvarna, and KTM 350\/450cc (2018-2023). Features blue anodized titanium construction and advanced RCT performance.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773744885843,"sku":"045629","price":769.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-045629-gas-gas-2021-2023-mc-450f-ex-350f-and-ex-450f-668219.jpg?v=1735343383"},{"product_id":"fmf-factory-4-1-rct-slip-on-muffler-2016-2026-ktm-husqvarna-gasgas","title":"FMF Factory 4.1 RCT Slip-On Muffler 045629 — GasGas \/ Husqvarna \/ KTM 350-450 2018-2023","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045629 — GasGas \/ Husqvarna \/ KTM 350-450 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUnlock the true potential of your 350 or 450cc machine with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Engineered to be the absolute pinnacle of FMF exhaust technology, the \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e utilizes a unique, patented core shape that significantly lowers decibels while actually increasing power output throughout the entire RPM range. Whether you are attacking a supercross track or navigating technical enduro terrain, this muffler delivers the smooth, tractable power you need.\u003c\/p\u003e\n\u003cp\u003eCrafted from premium blue anodized titanium and finished with a sleek carbon fiber end cap, this muffler is designed to withstand the harshest off-road conditions while reducing overall bike weight. FMF's \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the muffler closer to the center of the bike, effectively centralizing mass for better handling and reduced vulnerability to crash damage. This is a top-tier performance upgrade for riders who refuse to compromise on quality or results.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology maintains maximum power while reducing overall sound output.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases volume for improved exhaust flow and enhanced mid-to-top end power.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering centralizes mass for better handling and crash resistance.\u003c\/li\u003e\n  \u003cli\u003eVersatile end cap design enables easy installation of spark arrestors or sound-tuning inserts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2022-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eMC 350F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eEX 350F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eMC 450F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eEX 450F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFC 350\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFC 450\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFX 450\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFX 350\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e350 SX-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 XC-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e350 XC-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 SX-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2020\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 SX-F Factory Edition\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this slip-on affect my bike's sound level?\u003c\/strong\u003e\u003cbr\u003e\nA: It is designed to meet AMA\/FIM sound requirements. It includes a QuietCore 94 dB insert for sensitive areas, ensuring you can ride at top performance without being excessively loud.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this difficult to install?\u003c\/strong\u003e\u003cbr\u003e\nA: Not at all. As a slip-on system, it is designed for a straightforward installation onto your stock header or an FMF header, utilizing the factory mounting points.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Since you're running a high-output 350 or 450, keep an eye on your muffler's packing condition. These larger displacement engines push more exhaust volume and heat, which will break down packing material faster than smaller bikes. If the bike starts to sound raspy or loses that crisp throttle response, replace the packing immediately. A fresh repacking job is the cheapest way to maintain peak performance and keep the exhaust note at legal decibel levels.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/moto-house-mx-performance-package-performance-upgrades-engine-mods-accessories-for-ktm-450-sx-f\"\u003eKTM 450 SX-F Performance Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc-350-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna FC 350 Performance Parts\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-mc-350f-performance-parts-and-accessories-moto-house-mx\"\u003eGas Gas MC 350F Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 045629\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"045629\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for GasGas, Husqvarna, and KTM 350\/450cc (2018-2023). Features blue anodized titanium construction and advanced RCT performance.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773755207763,"sku":"045629","price":769.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-045629-husqvarna-fc-450-fc-350-fx-450-and-fx-350-775706.jpg?v=1735343381"},{"product_id":"fmf-4-1-rct-slip-on-exhaust-2016-2026-ktm-husqvarna-gasgas","title":"FMF Factory 4.1 RCT Slip-On Muffler 045629 — GasGas \/ Husqvarna \/ KTM 350-450 2018-2023","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 045629 — GasGas \/ Husqvarna \/ KTM 350-450 2018-2023\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUnlock the true potential of your 350 or 450cc machine with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Engineered to be the absolute pinnacle of FMF exhaust technology, the \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e utilizes a unique, patented core shape that significantly lowers decibels while actually increasing power output throughout the entire RPM range. Whether you are attacking a supercross track or navigating technical enduro terrain, this muffler delivers the smooth, tractable power you need.\u003c\/p\u003e\n\u003cp\u003eCrafted from premium blue anodized titanium and finished with a sleek carbon fiber end cap, this muffler is designed to withstand the harshest off-road conditions while reducing overall bike weight. FMF's \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the muffler closer to the center of the bike, effectively centralizing mass for better handling and reduced vulnerability to crash damage. This is a top-tier performance upgrade for riders who refuse to compromise on quality or results.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology maintains maximum power while reducing overall sound output.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases volume for improved exhaust flow and enhanced mid-to-top end power.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering centralizes mass for better handling and crash resistance.\u003c\/li\u003e\n  \u003cli\u003eVersatile end cap design enables easy installation of spark arrestors or sound-tuning inserts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2022-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eMC 350F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eEX 350F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eMC 450F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2023\u003c\/td\u003e\n    \u003ctd\u003eGas Gas\u003c\/td\u003e\n    \u003ctd\u003eEX 450F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFC 350\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFC 450\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFX 450\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2022\u003c\/td\u003e\n    \u003ctd\u003eHusqvarna\u003c\/td\u003e\n    \u003ctd\u003eFX 350\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e350 SX-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 XC-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e350 XC-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2022\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 SX-F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2020\u003c\/td\u003e\n    \u003ctd\u003eKTM\u003c\/td\u003e\n    \u003ctd\u003e450 SX-F Factory Edition\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this slip-on affect my bike's sound level?\u003c\/strong\u003e\u003cbr\u003e\nA: It is designed to meet AMA\/FIM sound requirements. It includes a QuietCore 94 dB insert for sensitive areas, ensuring you can ride at top performance without being excessively loud.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this difficult to install?\u003c\/strong\u003e\u003cbr\u003e\nA: Not at all. As a slip-on system, it is designed for a straightforward installation onto your stock header or an FMF header, utilizing the factory mounting points.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Since you're running a high-output 350 or 450, keep an eye on your muffler's packing condition. These larger displacement engines push more exhaust volume and heat, which will break down packing material faster than smaller bikes. If the bike starts to sound raspy or loses that crisp throttle response, replace the packing immediately. A fresh repacking job is the cheapest way to maintain peak performance and keep the exhaust note at legal decibel levels.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/moto-house-mx-performance-package-performance-upgrades-engine-mods-accessories-for-ktm-450-sx-f\"\u003eKTM 450 SX-F Performance Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/husqvarna-fc-350-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eHusqvarna FC 350 Performance Parts\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/gas-gas-mc-350f-performance-parts-and-accessories-moto-house-mx\"\u003eGas Gas MC 350F Performance Parts\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 045629\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"045629\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for GasGas, Husqvarna, and KTM 350\/450cc (2018-2023). Features blue anodized titanium construction and advanced RCT performance.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773759303763,"sku":"045629","price":769.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-045629-ktm-450-sx-f-350-sx-f-450-xc-f-and-350-xc-f-286605.jpg?v=1735343377"},{"product_id":"fmf-ti-factory-4-1-rct-slip-on-carbon-fiber-end-cap-041603-2019-2020-honda-crf450r-crf450rx","title":"FMF Ti Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 041575 - 2019-2020 Honda CRF450R, CRF450RX","description":"\u003ch3\u003eFMF Ti Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 041575 - 2019-2020 Honda CRF450R, CRF450RX\u003c\/h3\u003e\n\u003ch3\u003e\u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIntroducing the Factory 4.1 RCT: Revolutionizing Motorsport Performance with Resonance Chamber Technology™\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eIn the world of motocross, performance is everything. Riders are constantly searching for ways to improve their bikes' power, speed, and efficiency to gain an edge over the competition. Enter the Factory 4.1 RCT, a game-changing exhaust system by FMF that's taking the industry by storm. This cutting-edge product incorporates FMF's proprietary Resonance Chamber Technology™ (RCT) both internally and externally to deliver unparalleled power gains and weight savings. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAerospace Grade Materials for Superior Quality\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThe Factory 4.1 RCT isn't your average exhaust system. Manufactured entirely in FMF's Southern California factory, it is constructed from aerospace grade materials that meet their stringent specifications. This ensures exceptional quality and durability even under the most demanding conditions on the track.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Factory 4.1 RCT, incorporates FMF's Resonance Chamber Technology™\u003c\/li\u003e\n\u003cli\u003eIt is complementary to their Factory Forward Engineering, which moves the muffler closer to the motor to centralize mass.\u003c\/li\u003e\n\u003cli\u003eThe Factory 4.1 RCT is made from only aerospace-grade materials that meet their specifications and is 100% manufactured at their Southern California factory\u003c\/li\u003e\n\u003cli\u003eThe Factory 4.1 RCT provides massive power gains throughout the RPM range\u003c\/li\u003e\n\u003cli\u003eOffers a huge weight savings.\u003c\/li\u003e\n\u003cli\u003eAdditionally, it features the Rapid Tuning System (RTS).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/honda-crf450r-performance-upgrades-engine-mods-and-accessories-moto-house-mx\" target=\"_blank\" title=\"Honda CRF450R Performance Upgrades Engine Mods and Accessories | Moto-House MX\" rel=\"noopener noreferrer\"\u003eHonda CRF450R Performance Upgrades Engine Mods and Accessories \u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773895192659,"sku":"041575","price":899.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-041575-2019-2020-honda-crf450r-crf450rx-265923.jpg?v=1735343298"},{"product_id":"fmf-043373-factory-4-1-rct-slip-on-muffler-suzuki-rmz250-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 043373 — Suzuki RMZ250 2019-2025","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 043373 — Suzuki RMZ250 2019-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the ultimate performance upgrade for your Suzuki RMZ250. Utilizing FMF's patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler features a unique core shape that effectively lowers sound output while maximizing raw power delivery. Riders will experience improved throttle response and increased power throughout the entire RPM range, giving your RMZ250 the competitive edge required for racing and aggressive trail riding.\u003c\/p\u003e\n\u003cp\u003eBuilt from high-grade blue anodized titanium with a sleek carbon fiber end cap, this muffler is engineered for both durability and weight reduction. FMF's \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e centralizes mass closer to the bike's center of gravity, enhancing handling agility while protecting the exhaust from crash damage. Proudly made in the USA, this slip-on is fully compatible with your stock header pipe or an aftermarket FMF system.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology maintains peak power while meeting strict sound requirements.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases exhaust volume for smoother, broader power delivery.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering optimizes mass centralization for superior bike handling.\u003c\/li\u003e\n  \u003cli\u003eInnovative end cap allows for quick, simple installation of tuning tips or spark arrestors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2025\u003c\/td\u003e\n    \u003ctd\u003eSuzuki\u003c\/td\u003e\n    \u003ctd\u003eRMZ250\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this muffler legal for racing?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, it is designed to meet both AMA and FIM sound requirements. It also includes a QuietCore 94 dB insert for tracks with stricter noise regulations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this with my stock header?\u003c\/strong\u003e\u003cbr\u003e\nA: Absolutely. This FMF Factory 4.1 RCT slip-on is fully compatible with both the stock Suzuki header pipe and FMF aftermarket headers.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e The Suzuki RMZ250 is known for its precise handling, and adding a lighter titanium muffler like the Factory 4.1 only makes it better. However, remember to check your air filter and mapping after installation. A more efficient exhaust flow often means the engine can benefit from a slightly richer fuel mixture to reach its full potential without running too lean.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/suzuki-rm-z250-performance-parts-and-accessories-moto-house-mx\"\u003eSuzuki RM-Z250 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Coolants\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 043373\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"043373\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for Suzuki RMZ250 (2019-2025). Blue anodized titanium construction with carbon fiber end cap and advanced RCT performance.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773916033107,"sku":"043373","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-043373-2019-2023-suzuki-rm-z250-473833.jpg?v=1735343298"},{"product_id":"fmf-043365-factory-4-1-rct-slip-on-muffler-suzuki-rmz450-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 043365 — Suzuki RMZ450 2018-2025","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 043365 — Suzuki RMZ450 2018-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUpgrade your Suzuki RMZ450 with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e, the premier exhaust choice for professional and amateur racers alike. Utilizing FMF's patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler employs a unique core geometry to reduce overall sound levels while significantly boosting power output. Whether you are charging out of a gate or navigating technical track sections, you will feel the improvement in throttle response and low-to-mid range torque.\u003c\/p\u003e\n\u003cp\u003eConstructed from lightweight, premium blue anodized titanium and finished with a durable carbon fiber end cap, this system is built to survive the demands of motocross. FMF's \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the unit closer to the center of your bike, aiding in mass centralization for improved handling and reduced vulnerability during bike-to-bike contact. Proudly manufactured in the USA, this slip-on integrates seamlessly with both your factory header and performance aftermarket headers.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology maintains maximum power while keeping sound output in check.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases exhaust volume for improved flow and power gains throughout the RPM range.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering optimizes bike mass centralization for superior agility.\u003c\/li\u003e\n  \u003cli\u003eEasy-access end cap design allows for fast installation of spark arrestors or sound tuning tips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2025\u003c\/td\u003e\n    \u003ctd\u003eSuzuki\u003c\/td\u003e\n    \u003ctd\u003eRMZ450\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this affect the sound compliance of my RMZ450?\u003c\/strong\u003e\u003cbr\u003e\nA: The muffler is designed to meet AMA and FIM sound regulations. A QuietCore 94 dB insert is included, providing you with the flexibility to reduce noise levels when riding at sound-sensitive venues.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to modify my bike to install this?\u003c\/strong\u003e\u003cbr\u003e\nA: No, this is a direct bolt-on slip-on system. It is designed to fit your stock header pipe perfectly without any additional modifications required.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e On a big-bore 450, heat management is everything. The blue anodized finish on this titanium muffler looks amazing, but make sure to clean it with a dedicated titanium cleaner to prevent debris from baking into the finish. Also, if you notice your bike feeling 'snappy' or popping on deceleration after the upgrade, you may want to check your fuel mapping—a slight tweak can go a long way in balancing your air\/fuel ratio with the improved exhaust flow.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/suzuki-rm-z450-performance-parts-and-accessories-moto-house-mx\"\u003eSuzuki RM-Z450 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 043365\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"043365\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for Suzuki RMZ450 (2018-2025). High-performance blue anodized titanium with carbon fiber end cap.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773923569747,"sku":"043365","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/76d6-5a0daf3073adf.jpg?v=1682485042"},{"product_id":"fmf-ti-factory-4-1-rct-slip-on-carbon-fiber-end-cap-044455-2019-2025-yamaha-yz250f-yz250fx","title":"FMF Ti Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 044455 - 2019-2025 Yamaha YZ250F, YZ250FX","description":"\u003ch2\u003e✨FMF Ti Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 044455 - 2019-2024 Yamaha YZ250F, 2020-2025 YZ250FX\u003c\/h2\u003e\n\u003ch3\u003e\u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003eUpgrade your ride with a high-performance, lightweight, and durable exhaust designed to optimize engine output, improve throttle response, and enhance handling. This advanced system features aerospace-grade materials and long tail keywords like “premium slip-on exhaust upgrade for Yamaha YZ250F and YZ250FX” to help you dominate off-road tracks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e➡️Key Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eResonance Chamber Technology™:\u003c\/strong\u003e Delivers smooth, responsive power throughout the RPM range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Forward Engineering:\u003c\/strong\u003e Centralizes mass for improved balance and agility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace-Grade Materials:\u003c\/strong\u003e Ensures unmatched durability, long-lasting performance, and reduced weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon Fiber End Cap:\u003c\/strong\u003e Offers a sleek, race-inspired look while minimizing drag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid Tuning System (RTS):\u003c\/strong\u003e Enables quick adjustments for ever-changing track conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect Fit for Specific Models:\u003c\/strong\u003e Tailored for 2019-2025 Yamaha YZ250F and 2020-2024 YZ250FX.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this exhaust system compatible with my 2024 Yamaha YZ250F?\u003c\/strong\u003e\u003cbr\u003eYes, it fits all Yamaha YZ250F models from 2019 to 2025 and YZ250FX models from 2020 to 2024.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill I need additional modifications to install this slip-on exhaust?\u003c\/strong\u003e\u003cbr\u003eNo, it’s designed as a direct bolt-on upgrade for seamless installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes the carbon fiber end cap improve performance or is it mainly for style?\u003c\/strong\u003e\u003cbr\u003eIt reduces weight slightly and enhances airflow, resulting in improved performance and a sleek, race-inspired look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow often should I check or adjust the Rapid Tuning System (RTS)?\u003c\/strong\u003e\u003cbr\u003eMost riders tune their RTS settings before races or when track conditions change, ensuring optimal performance at all times.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e🚨Order the FMF Ti Factory 4.1 RCT (Slip-On) - Now!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReady to snap that throttle and leave everyone in your dust? Grab the FMF Ti Factory 4.1 RCT Slip-On Exhaust, bolt it on, and rip into the track with blazing speed and unstoppable power. Don’t let the pack catch you—get yours now and own every turn, jump, and checkered flag!\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Yamaha YZ250F Performance Upgrades Engine Mods and Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz250f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\" target=\"_blank\"\u003eYamaha YZ250F Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ch4 class=\"collection-hero__title\"\u003e\u003cspan\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/span\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773930287187,"sku":"044455","price":764.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-044455-2019-2025-yamaha-yz250f-yz250fx-881182.jpg?v=1735343298"},{"product_id":"fmf-044429-factory-4-1-rct-slip-on-muffler-yamaha-yz250f-wr250f-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 044429 — Yamaha YZ250F \/ WR250F \/ YZ250FX 2014-2019","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 044429 — Yamaha YZ250F \/ WR250F \/ YZ250FX 2014-2019\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eTransform your Yamaha's performance with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Designed for the YZ250F, WR250F, and YZ250FX platforms, this muffler utilizes FMF's patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e. This innovative core shape effectively reduces decibel levels while significantly enhancing power output across the entire RPM range, giving your bike the responsive, hard-hitting performance needed for track or trail.\u003c\/p\u003e\n\u003cp\u003eEngineered from high-quality blue anodized titanium with a rugged carbon fiber end cap, this exhaust is as durable as it is lightweight. FMF’s \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the unit closer to the center of the bike, improving mass centralization for superior handling and better protection during falls. Proudly \u003cstrong\u003emade in the USA\u003c\/strong\u003e, this system is a direct bolt-on upgrade that works seamlessly with your stock header or an FMF aftermarket header.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology maintains peak power while meeting sound requirements.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases exhaust volume for improved flow and power gains.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering optimizes mass centralization for better bike handling.\u003c\/li\u003e\n  \u003cli\u003eVersatile end cap design enables easy installation of spark arrestors or sound-tuning inserts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2015-2019\u003c\/td\u003e\n    \u003ctd\u003eYamaha\u003c\/td\u003e\n    \u003ctd\u003eWR250F\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2015-2019\u003c\/td\u003e\n    \u003ctd\u003eYamaha\u003c\/td\u003e\n    \u003ctd\u003eYZ250FX\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2014-2018\u003c\/td\u003e\n    \u003ctd\u003eYamaha\u003c\/td\u003e\n    \u003ctd\u003eYZ250F\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this system sound-compliant for off-road racing?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, it is designed to meet AMA and FIM sound requirements. A QuietCore 94 dB insert is included in the box for added sound suppression if needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include a spark arrestor?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, the muffler comes with a spark arrestor pre-installed or included, making it compliant for riding in protected public lands where spark arrestors are mandatory.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e To get the most out of your YZ250F engine, ensure your air filter is clean and your fuel mapping is updated to match the improved flow of this exhaust. Many riders find that a slight adjustment to the fuel mapping helps eliminate any decel-pop and ensures the engine runs cooler and stronger across the board.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz250f-yz250fx-performance-parts-and-accessories\"\u003eYamaha YZ250F \/ YZ250FX Performance Parts\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 044429\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"044429\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for Yamaha YZ250F, WR250F, and YZ250FX (2014-2019). High-performance blue anodized titanium exhaust system.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773941952595,"sku":"044429","price":719.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-044429-2014-2018-yamaha-yz250f-yz250fx-983864.jpg?v=1735343298"},{"product_id":"fmf-044445-factory-4-1-rct-slip-on-muffler-yamaha-yz450f-yz450fx-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 044445 — Yamaha YZ450F \/ YZ450FX 2018-2026","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 044445 — Yamaha YZ450F \/ YZ450FX 2018-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUnleash the full potential of your Yamaha 450 with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Utilizing FMF's signature \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this exhaust features a patented core shape that maximizes power delivery while effectively managing sound output. Designed specifically for the YZ450F and YZ450FX platforms, this muffler provides a noticeable boost in power throughout the entire RPM range, giving you the edge on the track or the trail.\u003c\/p\u003e\n\u003cp\u003eConstructed from premium blue anodized titanium with a durable carbon fiber end cap, this system offers excellent weight savings over the factory exhaust. FMF’s \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the muffler closer to the bike's center, improving mass centralization for sharper handling and added durability during unintended impacts. Proudly \u003cstrong\u003emade in the USA\u003c\/strong\u003e, this high-performance slip-on is compatible with both your stock header and FMF aftermarket headers.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology maintains peak power while staying within sound regulations.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases exhaust volume for optimized flow and power gains.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering enhances mass centralization for superior agility.\u003c\/li\u003e\n  \u003cli\u003eVersatile end cap design allows for easy installation of tuning tips or the included spark arrestor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2025\u003c\/td\u003e\n    \u003ctd\u003eYamaha\u003c\/td\u003e\n    \u003ctd\u003eYZ450FX\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2026\u003c\/td\u003e\n    \u003ctd\u003eYamaha\u003c\/td\u003e\n    \u003ctd\u003eYZ450F\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler come with a spark arrestor?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, it includes an integrated spark arrestor, making it fully compliant for riding on public lands or off-road trails where spark arrestors are required by law.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit my bike if I have the stock header?\u003c\/strong\u003e\u003cbr\u003e\nA: Absolutely. The Factory 4.1 RCT is designed as a direct slip-on replacement that works perfectly with your stock header pipe.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e The YZ450F is a powerhouse, but it can be a handful to manage. When installing a high-flow exhaust like the 4.1, you are essentially \"opening up\" the engine. I highly recommend running the Yamaha Power Tuner app to adjust your fuel mapping. Even a small increase in fueling at low-to-mid throttle openings can smooth out the power delivery and prevent the bike from running lean, especially in cooler weather.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eYamaha YZ450F Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 044445\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"044445\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for Yamaha YZ450F and YZ450FX (2018-2026). Premium titanium performance exhaust.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773947228243,"sku":"044445","price":764.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-044445-2018-2024-yamaha-yz450f-yz450fx-870229.jpg?v=1741211617"},{"product_id":"copy-of-fmf-ti-factory-4-1-rct-slip-on-carbon-fiber-end-cap-044409-2014-2017-yamaha-yz450f-yz450fx","title":"FMF Ti Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 044409 - 2014-2017 Yamaha YZ450F, YZ450FX","description":"\u003ch2\u003e✨FMF 044409 Factory 4.1 RCT Slip-On Muffler – Blue Titanium Power for Your Yamaha YZ450F!\u003c\/h2\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp data-start=\"93\" data-end=\"656\"\u003eTake your \u003cstrong data-start=\"103\" data-end=\"171\"\u003e2014-2017 Yamaha YZ450F, 2016-2018 YZ450FX, and 2016-2018 WR450F\u003c\/strong\u003e to the next level with the \u003cstrong data-start=\"199\" data-end=\"245\"\u003eFMF 044409 Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Featuring a \u003cstrong data-start=\"259\" data-end=\"307\"\u003estriking Blue Anodized Titanium construction\u003c\/strong\u003e with a \u003cstrong data-start=\"315\" data-end=\"339\"\u003eCarbon Fiber End Cap\u003c\/strong\u003e, this \u003cstrong data-start=\"346\" data-end=\"442\"\u003ehigh-performance exhaust delivers maximum power gains, reduced weight, and improved handling\u003c\/strong\u003e. Built with \u003cstrong data-start=\"455\" data-end=\"513\"\u003eFMF’s cutting-edge Resonance Chamber Technology™ (RCT)\u003c\/strong\u003e and \u003cstrong data-start=\"518\" data-end=\"549\"\u003eFactory Forward Engineering\u003c\/strong\u003e, it \u003cstrong data-start=\"554\" data-end=\"653\"\u003eenhances exhaust flow, optimizes power throughout the RPM range, and keeps your ride race-ready\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"658\" data-end=\"699\"\u003e\u003cstrong data-start=\"662\" data-end=\"697\"\u003eWhy Choose the FMF Factory 4.1 RCT?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"700\" data-end=\"1344\"\u003e✔ \u003cstrong data-start=\"702\" data-end=\"741\"\u003eResonance Chamber Technology™ (RCT)\u003c\/strong\u003e – Boosts power while \u003cstrong data-start=\"763\" data-end=\"783\"\u003eminimizing noise\u003c\/strong\u003e.\u003cbr data-start=\"784\" data-end=\"787\"\u003e✔ \u003cstrong data-start=\"789\" data-end=\"820\"\u003eFactory Forward Engineering\u003c\/strong\u003e – Compact design \u003cstrong data-start=\"838\" data-end=\"879\"\u003emoves the muffler closer to the motor\u003c\/strong\u003e for better balance and crash resistance.\u003cbr data-start=\"920\" data-end=\"923\"\u003e✔ \u003cstrong data-start=\"925\" data-end=\"974\"\u003eBlue Anodized Titanium + Carbon Fiber End Cap\u003c\/strong\u003e – \u003cstrong data-start=\"977\" data-end=\"1030\"\u003eIncredibly lightweight, durable, and race-proven.\u003c\/strong\u003e\u003cbr data-start=\"1030\" data-end=\"1033\"\u003e✔ \u003cstrong data-start=\"1035\" data-end=\"1079\"\u003eMassive Power Gains Across the RPM Range\u003c\/strong\u003e – Increased horsepower and better throttle response.\u003cbr data-start=\"1132\" data-end=\"1135\"\u003e✔ \u003cstrong data-start=\"1137\" data-end=\"1166\"\u003eRapid Tuning System (RTS)\u003c\/strong\u003e – Quick and easy \u003cstrong data-start=\"1184\" data-end=\"1211\"\u003eperformance adjustments\u003c\/strong\u003e.\u003cbr data-start=\"1212\" data-end=\"1215\"\u003e✔ \u003cstrong data-start=\"1217\" data-end=\"1241\"\u003e100% Made in the USA\u003c\/strong\u003e – Manufactured at \u003cstrong data-start=\"1260\" data-end=\"1297\"\u003eFMF’s Southern California factory\u003c\/strong\u003e for \u003cstrong data-start=\"1302\" data-end=\"1341\"\u003eunmatched quality and craftsmanship\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"1346\" data-end=\"1409\"\u003e\u003cstrong data-start=\"1350\" data-end=\"1407\"\u003eUpgrade Your Ride – Ride Lighter, Faster, and Louder!\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1410\" data-end=\"1595\"\u003eThe \u003cstrong data-start=\"1414\" data-end=\"1460\"\u003eFMF 044409 Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is the \u003cstrong data-start=\"1468\" data-end=\"1500\"\u003eultimate performance upgrade\u003c\/strong\u003e for your \u003cstrong data-start=\"1510\" data-end=\"1540\"\u003eYZ450F, YZ450FX, or WR450F\u003c\/strong\u003e. \u003cstrong data-start=\"1542\" data-end=\"1593\"\u003eDominate the track or trails—order yours today!\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"1597\" data-end=\"1650\"\u003e❇️ \u003cstrong data-start=\"1600\" data-end=\"1645\"\u003eLimited Stock – Buy Now Before It’s Gone!\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch3 data-start=\"1652\" data-end=\"1668\"\u003e\u003cstrong data-start=\"1657\" data-end=\"1666\"\u003eFAQs:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1669\" data-end=\"1820\"\u003e❓ \u003cstrong\u003e\u003cem data-start=\"1671\" data-end=\"1709\"\u003eWill this fit a 2018+ Yamaha YZ450F?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr data-start=\"1709\" data-end=\"1712\"\u003eNo, this model is specifically designed for \u003cstrong data-start=\"1756\" data-end=\"1817\"\u003e2014-2017 YZ450F, 2016-2018 YZ450FX, and 2016-2018 WR450F\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1822\" data-end=\"1945\"\u003e❓\u003cstrong\u003e \u003cem data-start=\"1824\" data-end=\"1859\"\u003eDoes it include a spark arrestor?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr data-start=\"1859\" data-end=\"1862\"\u003eNo, but a \u003cstrong data-start=\"1872\" data-end=\"1921\"\u003espark arrestor insert is available separately\u003c\/strong\u003e for trail compliance.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\" title=\"Yamaha YZ450F Performance Upgrades Engine Mods and Accessories | Moto-House MX\" target=\"_blank\"\u003eYamaha YZ450F Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp class=\"collection-hero__title\"\u003e\u003cspan\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions \u003c\/strong\u003e- Best Motocross Shop in Central Florida \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40773953683539,"sku":"044409","price":719.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-carbon-fiber-end-cap-044409-2014-2017-yamaha-yz450f-yz450fx-475475.jpg?v=1735343305"},{"product_id":"fmf-042394-factory-4-1-rct-slip-on-muffler-kawasaki-kx250-kx250x-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 042394 — Kawasaki KX250 \/ KX250X 2021-2024","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 042394 — Kawasaki KX250 \/ KX250X 2021-2024\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUnlock the race-proven performance of the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e for your Kawasaki KX250 or KX250X. Utilizing FMF's patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this muffler features a unique, engineered core shape that significantly lowers decibel levels while maintaining maximum power output. By increasing internal volume through advanced ducting, the RCT system ensures improved exhaust flow, resulting in measurable power gains across the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eCrafted with a high-grade aluminum canister and a sleek, durable carbon fiber end cap, this exhaust is designed to balance weight and longevity. FMF’s \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the muffler closer to the bike's center, optimizing mass centralization for improved handling and reduced vulnerability during high-intensity riding. Proudly \u003cstrong\u003emade in the USA\u003c\/strong\u003e, this slip-on integrates perfectly with your stock header or an FMF aftermarket header for a professional-grade upgrade.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology effectively reduces sound without sacrificing performance.\u003c\/li\u003e\n  \u003cli\u003eInternal ducting increases internal volume, optimizing exhaust flow for broad power gains.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering optimizes mass centralization for superior agility on the track.\u003c\/li\u003e\n  \u003cli\u003eEasy-access end cap allows for quick installation of spark arrestors or sound-tuning inserts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2024\u003c\/td\u003e\n    \u003ctd\u003eKawasaki\u003c\/td\u003e\n    \u003ctd\u003eKX250X\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2024\u003c\/td\u003e\n    \u003ctd\u003eKawasaki\u003c\/td\u003e\n    \u003ctd\u003eKX250\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include a spark arrestor?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, a spark arrestor is included, ensuring this muffler is compliant for use in riding areas where spark arrestors are mandatory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this difficult to install on my KX250?\u003c\/strong\u003e\u003cbr\u003e\nA: It is designed as a direct slip-on replacement. It bolts directly to your stock header pipe using the factory mounting points, making for a very straightforward installation.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e High-performance exhausts can change the way your engine breathes, especially on the Kawasaki 250 platform. When you switch to the 4.1 RCT, ensure your air filter is clean and properly oiled to maximize the benefits of the improved exhaust flow. If you notice any excessive popping on deceleration, it is a good indicator that your engine might benefit from a fuel mapping adjustment to perfectly dial in that air\/fuel ratio.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-kx250-premium-performance-parts-and-accessories\"\u003eKawasaki KX250 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 042394\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"042394\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for Kawasaki KX250 and KX250X (2021-2024). Aluminum construction with carbon fiber end cap for optimized performance.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775123796051,"sku":"042394","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-042394-slip-on-carbon-fiber-end-cap-2021-2023-kawasaki-kx250f-and-kx250x-491655.jpg?v=1735341941"},{"product_id":"fmf-aluminum-factory-4-1-rct-042330-slip-on-carbon-fiber-end-cap-2016-2018-kawasaki-kx450f","title":"FMF Aluminum Factory 4.1 RCT - 042330 - (Slip-On) Carbon Fiber End Cap 2016-2018 Kawasaki KX450F","description":"\u003ch3\u003eFMF Aluminum Factory 4.1 RCT - 042330 - (Slip-On) Carbon Fiber End Cap 2016-2017 Kawasaki KX450F\u003c\/h3\u003e\n\u003ch4\u003e  \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\n\u003c\/h4\u003e\nThe latest in FMF Resonance Chamber Technology™ both internally and externally are featured in the Factory 4.1 RCT exhaust system for the Kawasaki KX450F. In addition, we have achieved a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade aluminum that meet our exacting specifications and is manufactured 100% at FMF Racing Southern California factory.\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eThe exhaust system for the Kawasaki KX450F features the latest in Resonance Chamber Technology\u003c\/li\u003e\n\u003cli\u003eRCT Technology, delivering maximum power output while minimizing sound level\u003c\/li\u003e\n\u003cli\u003eIt boasts a patented canister shape that increases internal volume, allowing for more sound absorbing material\u003c\/li\u003e\n\u003cli\u003eThe factory forward engineering adds to the durability of the system and ensures that it is less prone to crash damage.\u003c\/li\u003e\n\u003cli\u003eAdditionally, the exhaust is tuned with optimized core specifications for each bike and an innovative rear endcap, allowing for easy installation of tuning tip inserts or spark arrestor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-kx450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\" title=\"Kawasaki KX450F Performance Upgrades Engine Mods and Accessories | Moto-House MX\" target=\"_blank\"\u003eKawasaki KX450F Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ch4 class=\"collection-hero__title\"\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/strong\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775141916755,"sku":"042330","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-042330-slip-on-carbon-fiber-end-cap-2016-2018-kawasaki-kx450f-491434.jpg?v=1735341934"},{"product_id":"fmf-aluminum-factory-4-1-rct-043372-slip-on-carbon-fiber-end-cap-2019-2023-suzuki-rm-z250","title":"FMF Aluminum Factory 4.1 RCT - 043372 - (Slip-On) Carbon Fiber End Cap 2019-2023 Suzuki RM-Z250","description":"\u003ch3\u003eFMF Aluminum Factory 4.1 RCT - 043372 - (Slip-On) Carbon Fiber End Cap 2019-2023 Suzuki RM-Z250\u003c\/h3\u003e\n\u003ch4\u003e  \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe latest in FMF Resonance Chamber Technology™ both internally and externally are featured in the Factory 4.1 RCT exhaust system for the Suzuki RM-Z250. In addition, we have achieved a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade aluminum that meet our exacting specifications and is manufactured 100% at FMF Racing Southern California factory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFMF Aluminum Factory 4.1 RCT  (Slip-On) Carbon Fiber End Cap:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe exhaust system for the Suzuki RM-Z250 features the latest in Resonance Chamber Technology\u003c\/li\u003e\n\u003cli\u003eRCT Technology, delivering maximum power output while minimizing sound level\u003c\/li\u003e\n\u003cli\u003eIt boasts a patented canister shape that increases internal volume, allowing for more sound absorbing material\u003c\/li\u003e\n\u003cli\u003eThe factory forward engineering adds to the durability of the system and ensures that it is less prone to crash damage.\u003c\/li\u003e\n\u003cli\u003eAdditionally, the exhaust is tuned with optimized core specifications for each bike and an innovative rear endcap, allowing for easy installation of tuning tip inserts or spark arrestor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca title=\"Suzuki RM-Z250 Performance Upgrades Engine Mods and Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/suzuki-rmz250-performance-upgrades-engine-mods-and-accessories-moto-house-mx\" target=\"_blank\"\u003eSuzuki RM-Z250 Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ch4 class=\"collection-hero__title\"\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/strong\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775148470355,"sku":"043372","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-043372-slip-on-carbon-fiber-end-cap-2019-2023-suzuki-rm-z250-388192.jpg?v=1735341992"},{"product_id":"fmf-043364-factory-4-1-rct-slip-on-muffler-suzuki-rmz450-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler 043364 — Suzuki RMZ450 2018-2025","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler 043364 — Suzuki RMZ450 2018-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eDominate the track with the \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e for your Suzuki RMZ450. Engineered with FMF’s patented \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, this exhaust features a unique core shape designed to decrease sound output while maintaining maximum engine performance. The system utilizes internal ducting to increase volume, which optimizes exhaust flow and creates a broader, more usable power band across the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eBuilt for the rigors of professional motocross, this muffler features a robust construction and a sleek carbon fiber end cap. FMF’s \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the unit closer to the bike's center of gravity, improving mass centralization for sharper handling and added protection during race-day incidents. Proudly \u003cstrong\u003emade in the USA\u003c\/strong\u003e, this high-performance slip-on is a direct bolt-on upgrade that is fully compatible with your stock header or an FMF performance header.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResonance Chamber Technology keeps your bike sound-compliant while maximizing power delivery.\u003c\/li\u003e\n  \u003cli\u003eAdvanced internal ducting improves exhaust flow for enhanced throttle response.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering optimizes bike mass centralization for superior agility.\u003c\/li\u003e\n  \u003cli\u003eVersatile end cap design allows for fast, tool-free installation of spark arrestors or tuning tips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2018-2025\u003c\/td\u003e\n    \u003ctd\u003eSuzuki\u003c\/td\u003e\n    \u003ctd\u003eRMZ450\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this muffler meet track sound requirements?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, it is built to meet both AMA and FIM sound standards. A QuietCore 94 dB insert is included in the package for riders who need additional noise suppression at specific tracks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a difficult install for a beginner?\u003c\/strong\u003e\u003cbr\u003e\nA: No, this is a slip-on system designed to fit directly onto your stock header pipe using the factory mounting points, making it a very simple process to upgrade your bike.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e The RMZ450 is a bike that loves a clean intake and a dialed-in fuel map. When installing a high-flow exhaust like the Factory 4.1, you're improving scavenging—this usually means the engine can pull a bit more fuel. Taking the time to check your fuel injection mapping will help eliminate any lean conditions and ensure your engine stays cool and responsive under heavy loads.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/suzuki-rm-z450-performance-parts-and-accessories-moto-house-mx\"\u003eSuzuki RM-Z450 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Factory 4.1 RCT Slip-On Muffler 043364\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"043364\",\n  \"description\": \"FMF Factory 4.1 RCT Slip-On Muffler for Suzuki RMZ450 (2018-2025). High-performance exhaust with carbon fiber end cap.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775153680467,"sku":"043364","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-043364-slip-on-carbon-fiber-end-cap-2018-2024-suzuki-rm-z450-425547.jpg?v=1735341947"},{"product_id":"fmf-aluminum-factory-4-1-rct-041592-slip-on-stainless-end-cap-2019-2024-honda-crf110f","title":"FMF Aluminum Mini Factory 4.1 RCT - 041592 - (Slip-On) Stainless End Cap - 2019-2024 Honda CRF110F","description":"\u003cp class=\"css-1ypebu9 emv4zb87\"\u003e\u003cstrong\u003eFMF Aluminum Mini Factory 4.1 RCT - 041592 - (Slip-On) Stainless End Cap - 2019-2024 Honda CRF110F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"css-1ypebu9 emv4zb87\"\u003e\u003cstrong class=\"css-4ogmf6 emv4zb86\"\u003eMaximum Power, Minimum Sound: \u003c\/strong\u003eTake your Honda CRF110F to the next level with the FMF Factory 4.1 RCT Aluminum Mini Exhaust! This system incorporates the latest in FMF Resonance Chamber Technology™, delivering maximum power output while minimizing sound levels. The patented canister shape increases internal volume, allowing for more sound-absorbing material, and a unique chamber design enhances and refines exhaust pressure.\u003c\/p\u003e\n\u003cp class=\"css-1ypebu9 emv4zb87\"\u003e\u003cstrong class=\"css-4ogmf6 emv4zb86\"\u003eFactory Forward Engineering:\u003c\/strong\u003eThe Factory 4.1 RCT boasts forward engineering that moves the muffler closer to the motor, centralizing mass and adding to the durability of the system. This design makes the exhaust less prone to crash damage and complements our Factory Forward Engineering philosophy.\u003c\/p\u003e\n\u003cp class=\"css-1ypebu9 emv4zb87\"\u003e\u003cstrong class=\"css-4ogmf6 emv4zb86\"\u003ePremium Construction: \u003c\/strong\u003eThe Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory. The system features optimized core specifications for your bike and an innovative stainless steel rear end cap, allowing for easy installation of tuning tip inserts or a spark arrestor.\u003c\/p\u003e\n\u003cp class=\"css-1ypebu9 emv4zb87\"\u003e\u003cstrong class=\"css-4ogmf6 emv4zb86\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncorporates the latest in FMF Resonance Chamber Technology™\u003c\/li\u003e\n\u003cli\u003ePatented canister shape increases internal volume for more sound absorption\u003c\/li\u003e\n\u003cli\u003eUnique chamber design enhances and refines exhaust pressure\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass and increases durability\u003c\/li\u003e\n\u003cli\u003eConstructed from aerospace-grade materials\u003c\/li\u003e\n\u003cli\u003eManufactured 100% in FMF's Southern California factory\u003c\/li\u003e\n\u003cli\u003eOptimized core specifications for each bike\u003c\/li\u003e\n\u003cli\u003eStainless steel rear end cap for easy installation of tuning tips or spark arrestor\u003c\/li\u003e\n\u003cli\u003eFitment: Honda CRF110F\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"css-1ypebu9 emv4zb87\"\u003e\u003cstrong class=\"css-4ogmf6 emv4zb86\"\u003eUpgrade Your Pit Bike: \u003c\/strong\u003eDon't settle for stock performance. The FMF Factory 4.1 RCT is a top-notch performance upgrade that combines maximum power output with minimized sound levels. Order yours today and discover why FMF is a trusted name in motocross exhaust systems.\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Honda CRF110F Performance Upgrades Engine Mods and Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/search?q=Honda+CRF110F+Performance+Upgrades+Engine+Mods+and+Accessories\u0026amp;options%5Bprefix%5D=last\" target=\"_blank\"\u003eHonda CRF110F Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775164395603,"sku":"041592","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-mini-factory-41-rct-041592-slip-on-stainless-end-cap-2019-2024-honda-crf110f-374774.jpg?v=1735341991"},{"product_id":"fmf-041594-mini-factory-4-1-slip-on-muffler-honda-crf125f-moto-house-mx","title":"FMF Mini Factory 4.1 Slip-On Muffler 041594 — Honda CRF125F 2019-2026","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Mini Factory 4.1 Slip-On Muffler 041594 — Honda CRF125F 2019-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eGive your Honda CRF125F the performance upgrade it deserves with the \u003cstrong\u003eFMF Mini Factory 4.1 Slip-On Muffler\u003c\/strong\u003e. Specifically engineered for mini and pit bike applications, this muffler is one of the lightest options available, helping you shave weight while significantly improving your bike's power output across the entire RPM range. Whether you are hitting the track or tearing up the backyard trails, you will notice a sharper throttle response and an improved, aggressive exhaust note.\u003c\/p\u003e\n\u003cp\u003eUtilizing FMF's exclusive proprietary \u003cstrong\u003eChamber Core technology\u003c\/strong\u003e, this muffler delivers superior flow and performance in a compact, durable package. FMF's \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e centralizes the mass of the muffler toward the center of your bike, which helps improve handling and overall balance. Proudly \u003cstrong\u003emade in the USA\u003c\/strong\u003e from premium quality materials, this system is designed to be customizable with performance tuning inserts and is ready to take your pit bike riding to the next level.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Mini Factory 4.1 Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProprietary Chamber Core technology for enhanced horsepower throughout the RPM range.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering optimizes mass centralization for better handling.\u003c\/li\u003e\n  \u003cli\u003eExtremely lightweight construction to reduce overall bike weight.\u003c\/li\u003e\n  \u003cli\u003eCustomizable design allows for performance tuning inserts and spark arrestor modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2019-2026\u003c\/td\u003e\n    \u003ctd\u003eHonda\u003c\/td\u003e\n    \u003ctd\u003eCRF125F\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this improve performance on the CRF125F?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, it is designed to improve power and torque throughout the entire RPM range, giving your CRF125F a more responsive feel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this muffler loud?\u003c\/strong\u003e\u003cbr\u003e\nA: It is designed to meet AMA sound requirements on most models. It provides a deeper, more aggressive tone without being excessively loud for standard trail riding.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When upgrading to a high-flow exhaust on a CRF125F, don't forget to check your air intake. These small bikes are often choked down by the stock airbox. Installing an aftermarket high-flow air filter alongside this muffler will help the engine breathe even better, allowing you to fully realize the power gains the FMF 4.1 system provides.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/moto-house-mini-pit-bike-performance-headquarters-your-honda-crf125f\"\u003eHonda CRF125F Performance Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Mini Factory 4.1 Slip-On Muffler 041594\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"041594\",\n  \"description\": \"FMF Mini Factory 4.1 Slip-On Muffler for Honda CRF125F (2019-2026). Lightweight performance exhaust designed for pit bikes.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775172423763,"sku":"041594","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-mini-factory-41-rct-041594-slip-on-stainless-end-cap-2019-2023-honda-crf125f-465437.jpg?v=1735341999"},{"product_id":"fmf-042380-mini-factory-4-1-exhaust-system-kawasaki-suzuki-110-moto-house-mx","title":"FMF Mini Factory 4.1 Full Exhaust System 042380 — Kawasaki \/ Suzuki 110 2002-2025","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eFMF Mini Factory 4.1 Full Exhaust System 042380 — Kawasaki \/ Suzuki 110 2002-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eUpgrade your 110cc pit bike with the \u003cstrong\u003eFMF Mini Factory 4.1 Full Exhaust System\u003c\/strong\u003e, engineered for riders who demand superior power over stock systems. Designed specifically for the Kawasaki KLX110 series and the Suzuki DR-Z110, this full system replaces your restrictive factory exhaust with a high-performance stainless steel header and lightweight aluminum muffler. You will immediately notice improved throttle response and increased horsepower across the entire RPM range, transforming your bike's overall rideability.\u003c\/p\u003e\n\u003cp\u003eFMF’s \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e pulls the muffler closer to the center of the bike, effectively centralizing mass for better handling and improved crash resistance. The innovative end cap design allows for the quick and easy installation of tuning tips or the included spark arrestor, ensuring you are ready for any track or trail environment. Built with premium American materials, this system meets strict AMA and FIM sound requirements, with the included 94 dB QuietCore insert ensuring you stay within regulations while maintaining aggressive performance.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Mini Factory 4.1 Full Exhaust System\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides superior power gains compared to the restrictive stock exhaust system.\u003c\/li\u003e\n  \u003cli\u003eConstructed with a durable stainless steel header and a high-performance aluminum muffler.\u003c\/li\u003e\n  \u003cli\u003eFactory Forward Engineering optimizes mass centralization for superior pit bike handling.\u003c\/li\u003e\n  \u003cli\u003eIncludes a 94 dB QuietCore insert and spark arrestor for maximum versatility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2025\u003c\/td\u003e\n    \u003ctd\u003eKawasaki\u003c\/td\u003e\n    \u003ctd\u003eKLX110R L\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2021-2025\u003c\/td\u003e\n    \u003ctd\u003eKawasaki\u003c\/td\u003e\n    \u003ctd\u003eKLX110R\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2010-2020\u003c\/td\u003e\n    \u003ctd\u003eKawasaki\u003c\/td\u003e\n    \u003ctd\u003eKLX110L\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2010-2020\u003c\/td\u003e\n    \u003ctd\u003eKawasaki\u003c\/td\u003e\n    \u003ctd\u003eKLX110\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2003-2005\u003c\/td\u003e\n    \u003ctd\u003eSuzuki\u003c\/td\u003e\n    \u003ctd\u003eDR-Z110\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2002-2009\u003c\/td\u003e\n    \u003ctd\u003eKawasaki\u003c\/td\u003e\n    \u003ctd\u003eKLX 110L\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a full exhaust system or just the muffler?\u003c\/strong\u003e\u003cbr\u003e\nA: This is a full exhaust system, including both the high-performance stainless steel header pipe and the aluminum muffler.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to re-jet my carb after installing this?\u003c\/strong\u003e\u003cbr\u003e\nA: On these 110cc models, installing a full performance exhaust significantly increases airflow. We highly recommend checking your carburetor jetting to ensure your engine is getting the proper fuel mixture for optimal power and reliability.\u003c\/p\u003e\n\n\u003ch2\u003eExpert Pro-Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e The KLX110 is a legendary platform, but adding a full system is just step one. To truly maximize the potential of this FMF exhaust, consider pairing it with a high-performance air filter and an aftermarket CDI box. These bikes love to breathe, and once you get the intake, exhaust, and ignition timing dialed in, you'll be surprised at how much hidden power you can unlock.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-klx110-klx110l-and-klx110r-moto-house-mini-pit-bike-upgades-engine-mods-and-accessories-performance-headquarters\"\u003eKawasaki KLX110 Performance Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Performance Chains\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Maintenance\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Mini Factory 4.1 Full Exhaust System 042380\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"042380\",\n  \"description\": \"FMF Mini Factory 4.1 Full Exhaust System for Kawasaki KLX110 and Suzuki DR-Z110 (2002-2025). Stainless steel header with aluminum muffler.\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775179567187,"sku":"042380","price":413.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-mini-factory-41-rct-exhaust-system-aluminumstainless-steel-042380-2020-2023-kawasaki-klx110-823424.jpg?v=1735341992"},{"product_id":"fmf-ti-factory-4-1-rct-full-system-carbon-fiber-end-cap-041613-2022-2023-honda-crf250r-crf250rx","title":"FMF Ti Factory 4.1 RCT (Full System)  Carbon Fiber End Cap - Megabomb Head Pipe - 041613 - 2022-2024 Honda CRF250R, CRF250RX","description":"\u003cp data-start=\"0\" data-end=\"339\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"42\"\u003eFMF Ti Factory 4.1 RCT Full System\u003c\/strong\u003e for the 2022-2024 \u003cstrong data-start=\"61\" data-end=\"78\"\u003eHonda CRF250R\u003c\/strong\u003e and \u003cstrong data-start=\"83\" data-end=\"95\"\u003eCRF250RX\u003c\/strong\u003e is a top-tier exhaust system that delivers exceptional performance for motocross and off-road riders. It features FMF's cutting-edge \u003cstrong data-start=\"229\" data-end=\"261\"\u003eResonance Chamber Technology\u003c\/strong\u003e along with a \u003cstrong data-start=\"275\" data-end=\"297\"\u003eMegabomb Head Pipe\u003c\/strong\u003e, providing improved power and durability.\u003c\/p\u003e\n\u003ch3 data-start=\"341\" data-end=\"358\"\u003e➡️ Key Features:\u003c\/h3\u003e\n\u003cul data-start=\"360\" data-end=\"1326\"\u003e\n\u003cli data-start=\"360\" data-end=\"476\"\u003e\n\u003cstrong data-start=\"362\" data-end=\"395\"\u003eResonance Chamber Technology:\u003c\/strong\u003e Internally and externally integrated to maximize performance and power delivery.\u003c\/li\u003e\n\u003cli data-start=\"477\" data-end=\"596\"\u003e\n\u003cstrong data-start=\"479\" data-end=\"503\"\u003ePatented Core Shape:\u003c\/strong\u003e Lowers sound levels while maintaining maximum power output, ensuring a balanced performance.\u003c\/li\u003e\n\u003cli data-start=\"597\" data-end=\"721\"\u003e\n\u003cstrong data-start=\"599\" data-end=\"627\"\u003ePatented Canister Shape:\u003c\/strong\u003e Increases internal volume for more sound-absorbing material, further improving sound control.\u003c\/li\u003e\n\u003cli data-start=\"722\" data-end=\"837\"\u003e\n\u003cstrong data-start=\"724\" data-end=\"754\"\u003eEnhanced Exhaust Pressure:\u003c\/strong\u003e A unique chamber design refines exhaust pressure for optimized engine performance.\u003c\/li\u003e\n\u003cli data-start=\"838\" data-end=\"972\"\u003e\n\u003cstrong data-start=\"840\" data-end=\"872\"\u003eFactory Forward Engineering:\u003c\/strong\u003e Shorter length centralizes mass, making it less prone to crash damage, ideal for aggressive racing.\u003c\/li\u003e\n\u003cli data-start=\"973\" data-end=\"1083\"\u003e\n\u003cstrong data-start=\"975\" data-end=\"1009\"\u003eOptimized Core Specifications:\u003c\/strong\u003e Tuned exhaust for each specific application, ensuring maximum efficiency.\u003c\/li\u003e\n\u003cli data-start=\"1084\" data-end=\"1190\"\u003e\n\u003cstrong data-start=\"1086\" data-end=\"1108\"\u003eEasy Installation:\u003c\/strong\u003e Innovative rear endcap for the simple addition of tuning tips or spark arrestors.\u003c\/li\u003e\n\u003cli data-start=\"1191\" data-end=\"1326\"\u003e\n\u003cstrong data-start=\"1193\" data-end=\"1216\"\u003eMegabomb Head Pipe:\u003c\/strong\u003e Boosts horsepower by up to 3hp and reduces noise by up to 1.5dB, a perfect addition to enhance engine output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1328\" data-end=\"1623\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThis exhaust system is a must-have for serious riders looking to increase horsepower, optimize engine performance, and ensure better durability in the rough world of racing. The \u003cstrong data-start=\"1506\" data-end=\"1532\"\u003eFMF Ti Factory 4.1 RCT\u003c\/strong\u003e is engineered to provide significant performance gains without compromising sound quality.\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"See More FMF Power for Motocross bikes\" href=\"https:\/\/motohousemx.com\/search?q=See+all+FMF+exhaust+systems+\u0026amp;options%5Bprefix%5D=last\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/honda-crf250r-2010-2017-performance-package-high-performance-parts-racing-kit\" title=\"Moto-House MX – Performance Package, Performance Upgrades Engine Mods Accessories for Honda CRF250R\" target=\"_blank\"\u003eHonda CRF250R Performance Upgrades Engine Mods Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40781754990675,"sku":"041613","price":1237.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-full-system-carbon-fiber-end-cap-megabomb-head-pipe-041613-2022-2024-honda-crf250r-crf250rx-343983.jpg?v=1741211558"},{"product_id":"fmf-factory-4-1-rct-muffler-anodized-titanium-slip-on-042371-2019-2023-kawasaki-kx450f","title":"FMF Factory 4.1 RCT Muffler - Anodized Titanium (Slip-On) - 042371 - 2019-2023 Kawasaki KX450F","description":"\u003ch2 style=\"text-align: left;\"\u003e✨FMF Factory 4.1 RCT Slip-On – Blue Anodized Titanium Power! - 042371\u003c\/h2\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp data-end=\"286\" data-start=\"241\"\u003e\u003cstrong data-end=\"281\" data-start=\"244\"\u003eUnleash the Beast in Your Kawasaki KX450F!\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp data-end=\"726\" data-start=\"288\"\u003eLooking to \u003cstrong data-end=\"363\" data-start=\"299\"\u003ecrank up your power, cut weight, and ride like a factory pro\u003c\/strong\u003e? The \u003cstrong data-end=\"400\" data-start=\"369\"\u003eFMF Factory 4.1 RCT Slip-On\u003c\/strong\u003e with a \u003cstrong data-end=\"442\" data-start=\"408\"\u003eBlue Anodized Titanium Muffler\u003c\/strong\u003e and \u003cstrong data-end=\"471\" data-start=\"447\"\u003eCarbon Fiber End Cap\u003c\/strong\u003e is the ultimate performance upgrade for your \u003cstrong data-end=\"560\" data-start=\"517\"\u003e2019-2023 Kawasaki KX450F \/ 2021 KX450X\u003c\/strong\u003e. Built for \u003cstrong data-end=\"600\" data-start=\"572\"\u003emaximum horsepower gains\u003c\/strong\u003e, \u003cstrong data-is-only-node=\"\" data-end=\"630\" data-start=\"602\"\u003ebetter throttle response\u003c\/strong\u003e, and \u003cstrong data-end=\"659\" data-start=\"636\"\u003efactory-tuned sound\u003c\/strong\u003e, this \u003cstrong data-end=\"689\" data-start=\"666\"\u003elightweight exhaust\u003c\/strong\u003e takes your ride to the next level!\u003c\/p\u003e\n\u003ch3 data-end=\"775\" data-start=\"728\"\u003e\u003cstrong data-end=\"770\" data-start=\"731\"\u003eWhy Choose the FMF Factory 4.1 RCT?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1321\" data-start=\"777\"\u003e✔ \u003cstrong data-end=\"822\" data-start=\"779\"\u003eFMF Resonance Chamber Technology™ (RCT)\u003c\/strong\u003e – More power, less noise!\u003cbr data-end=\"851\" data-start=\"848\"\u003e✔ \u003cstrong data-end=\"884\" data-start=\"853\"\u003eFactory Forward Engineering\u003c\/strong\u003e – Moves weight closer to the motor for better handling.\u003cbr data-end=\"943\" data-start=\"940\"\u003e✔ \u003cstrong data-end=\"1002\" data-start=\"945\"\u003eBlue Anodized Titanium Muffler \u0026amp; Carbon Fiber End Cap\u003c\/strong\u003e – Sleek, durable, race-proven!\u003cbr data-end=\"1036\" data-start=\"1033\"\u003e✔ \u003cstrong data-is-only-node=\"\" data-end=\"1082\" data-start=\"1038\"\u003eOptimized Core \u0026amp; Patented Canister Shape\u003c\/strong\u003e – Increased internal volume for better sound absorption.\u003cbr data-end=\"1142\" data-start=\"1139\"\u003e✔ \u003cstrong data-end=\"1178\" data-start=\"1144\"\u003eCrash-Resistant Shorter Length\u003c\/strong\u003e – Built tough to withstand the roughest rides.\u003cbr data-end=\"1228\" data-start=\"1225\"\u003e✔ \u003cstrong data-end=\"1272\" data-start=\"1230\"\u003eSpark Arrestor \u0026amp; Tuning Tip Compatible\u003c\/strong\u003e – Easy customization for any riding condition.\u003c\/p\u003e\n\u003cp data-end=\"1377\" data-start=\"1323\"\u003e\u003cstrong data-end=\"1335\" data-start=\"1326\"\u003eFits:\u003c\/strong\u003e 2019-2023 Kawasaki KX450F \/ 2021 KX450X\u003c\/p\u003e\n\u003cp data-end=\"1441\" data-start=\"1379\"\u003e\u003cstrong data-end=\"1436\" data-start=\"1382\"\u003eUpgrade Your Ride \u0026amp; Feel the FMF Factory 4.1 Slip-On Difference Today!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1512\" data-start=\"1443\"\u003e\u003cspan data-end=\"1507\" data-start=\"1446\"\u003e➡️ \u003c\/span\u003e\u003cstrong data-end=\"1507\" data-start=\"1446\"\u003eClick \"Buy It Now\" – More Power, Less Weight, No Excuses!\u003c\/strong\u003e 🔹\u003c\/p\u003e\n\u003ch3 data-end=\"1528\" data-start=\"1514\"\u003e\u003cstrong data-end=\"1526\" data-start=\"1518\"\u003eFAQs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1694\" data-start=\"1530\"\u003e❓ \u003cstrong data-end=\"1580\" data-start=\"1532\"\u003eWill this slip-on work with my stock header?\u003c\/strong\u003e\u003cbr data-end=\"1583\" data-start=\"1580\"\u003eYes! The \u003cstrong data-end=\"1617\" data-start=\"1594\"\u003eFMF Factory 4.1 RCT\u003c\/strong\u003e is designed to fit your stock or FMF header for an easy performance boost.\u003c\/p\u003e\n\u003cp data-end=\"1839\" data-start=\"1696\"\u003e❓ \u003cstrong data-end=\"1730\" data-start=\"1698\"\u003eIs this exhaust lightweight?\u003c\/strong\u003e\u003cbr data-end=\"1733\" data-start=\"1730\"\u003eAbsolutely! The \u003cstrong data-end=\"1789\" data-start=\"1751\"\u003etitanium and aluminum construction\u003c\/strong\u003e significantly reduces weight compared to stock.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1902\" data-start=\"1841\"\u003e➡️ \u003cstrong data-end=\"1899\" data-start=\"1844\"\u003eGet Yours Now \u0026amp; Take Your KX450F to the Next Level!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca title=\"Kawasaki KX450F Performance Upgrades Engine Mods and Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/kawasaki-kx450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\" target=\"_blank\"\u003eSee More Kawasaki KX450F Performance Upgrades Engine Mods Accessories \u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #000000;\"\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40844652904531,"sku":"042371","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-factory-41-rct-muffler-anodized-titanium-slip-on-042371-2019-2023-kawasaki-kx450f-621599.webp?v=1741211441"},{"product_id":"fmf-aluminum-mini-factory-4-1-rct-blue-ti-041593-slip-on-2019-2024-honda-crf110f","title":"FMF Aluminum Mini Factory 4.1 RCT Blue Ti - 041593 - (Slip-On) - 2019-2024 Honda CRF110F","description":"\u003cp\u003e\u003cstrong\u003eFMF Aluminum Mini Factory 4.1 RCT Blue Anodized Titanium Muffler with Titanium End Cap - 041593 - (Slip-On) - 2019-2023 Honda CRF110F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Factory 4.1 RCT for the Honda CRF110F incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBlue Anodized Titanium Muffler with Titanium End Cap - Slip-On\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe exhaust system for the Honda CRF110F features the latest in Resonance Chamber Technology.\u003c\/li\u003e\n\u003cli\u003eRCT Technolgy, delivering maximum power output while minimizing sound level\u003c\/li\u003e\n\u003cli\u003eFactory 4.1 RCT boasts a patented canister shape that increases internal volume, allowing for more sound absorbing material, and a unique chamber design that enhances and refines exhaust pressure.\u003c\/li\u003e\n\u003cli\u003eThe Factory 4.1 forward engineering adds to the durability of the system and ensures that it is less prone to crash damage.\u003c\/li\u003e\n\u003cli\u003eAdditionally, the exhaust is tuned with optimized core specifications for each bike and an innovative stainless steel rear endcap, allowing for easy installation of tuning tip inserts or spark arrestor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/motohousemx.com\/search?q=Honda+CRF110F+Performance+Upgrades+Engine+Mods+and+Accessories\u0026amp;options%5Bprefix%5D=last\" title=\"Honda CRF110F Performance Upgrades Engine Mods and Accessories | Moto-House MX\" target=\"_blank\"\u003eHonda CRF110F Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003ca href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41006802829395,"sku":"041593","price":314.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-mini-factory-41-rct-blue-ti-041593-slip-on-2019-2024-honda-crf110f-950510.png?v=1735341992"},{"product_id":"fmf-aluminum-mini-factory-4-1-rct-blue-ti-041595-slip-on-2019-2023-honda-crf125f","title":"FMF Aluminum Mini Factory 4.1 RCT Blue Ti - 041595 - (Slip-On) - 2019-2023 Honda CRF125F","description":"\u003cp\u003e\u003cstrong\u003eFMF Aluminum Mini Factory 4.1 RCT Blue Anodized Titanium Muffler with Titanium End Cap - 041595 - (Slip-On) - 2019-2023 Honda CRF125F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Factory 4.1 RCT for the Honda CRF110F incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBlue Anodized Titanium Muffler with Titanium End Cap - Slip-On\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe exhaust system for the Honda CRF110F features the latest in Resonance Chamber Technology.\u003c\/li\u003e\n\u003cli\u003eRCT Technolgy, delivering maximum power output while minimizing sound level\u003c\/li\u003e\n\u003cli\u003eFactory 4.1 RCT boasts a patented canister shape that increases internal volume, allowing for more sound absorbing material, and a unique chamber design that enhances and refines exhaust pressure.\u003c\/li\u003e\n\u003cli\u003eThe Factory 4.1 forward engineering adds to the durability of the system and ensures that it is less prone to crash damage.\u003c\/li\u003e\n\u003cli\u003eAdditionally, the exhaust is tuned with optimized core specifications for each bike and an innovative stainless steel rear endcap, allowing for easy installation of tuning tip inserts or spark arrestor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/moto-house-mini-pit-bike-performance-headquarters-your-honda-crf125f\" title=\"Moto-House Mini - Pit Bike Upgades Engine Mods and Accessories Performance Headquarters your Honda CRF125F | Moto-House MX\" target=\"_blank\"\u003eHonda CRF125F Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41006845788243,"sku":"041595","price":314.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-mini-factory-41-rct-blue-ti-041595-slip-on-2019-2023-honda-crf125f-251368.jpg?v=1735341992"},{"product_id":"fmf-powerbomb-stainless-steel-header-041591-2019-2023-honda-crf125f-crf125fb","title":"FMF PowerBomb Stainless Steel Header - 041591 - 2019-2023 Honda CRF125F, CRF125FB","description":"\u003cp\u003e\u003cstrong\u003eMF PowerBomb Stainless Steel Header - 041591 - 2019-2023 Honda CRF125F, CRF125FB\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you're looking fro more performance of your Pit Bikes exhaust system, look no further than the redesigned PowerBomb from FMF. This innovative four-stroke header incorporates FMF's patented PowerBomb module, strategically placed to maximize performance and flow.\u003cbr\u003e\u003cbr\u003eFMF positions the PowerBomb at a key point in the header, the exhaust sonics are able to expand and contract, resulting in increased performance and flow. In fact, this intelligent design achieves a flow increase of nearly 10%, making it a great addition to any Pit Bike.\u003cbr\u003e\u003cbr\u003eBut the benefits don't stop there. The PowerBomb also serves as a \"pre-muffler,\" helping to lower the bike's sound output. The outer chamber of the PowerBomb allows the air to expand, cool, and ramp back up at a higher velocity, effectively reducing sound emissions.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUtilize FMF's patented module precisely located at the initial stage of the header for specific applications\u003c\/li\u003e\n\u003cli\u003ePosition \"Bomb\" increases performance\u003c\/li\u003e\n\u003cli\u003eHorsepower is increased as much as 10%\u003c\/li\u003e\n\u003cli\u003eAct as \"pre-muffler\" helping to lower the decibel output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/moto-house-mini-pit-bike-performance-headquarters-your-honda-crf125f\" title=\"Moto-House Mini - Pit Bike Upgades Engine Mods and Accessories Performance Headquarters your Honda CRF125F | Moto-House MX\" target=\"_blank\"\u003eHonda CRF125F Performance Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/strong\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41006847950931,"sku":"041591","price":179.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-powerbomb-stainless-steel-header-041591-2019-2023-honda-crf125f-crf125fb-566661.jpg?v=1735342471"},{"product_id":"fmf-titanium-mini-factory-4-1-exhaust-system-rct-blue-042381-2002-2024-kawasaki-klx110-klx110l-klx100r-and-klx110rl","title":"FMF Titanium Mini Factory 4.1 Exhaust System RCT Blue - 042381 - 2002-2024 Kawasaki KLX110, KLX110L, KLX100R, and KLX110RL","description":"\u003cdiv class=\"flex max-w-full flex-col flex-grow AIPRM__conversation__response\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"6eb669b4-3cc9-41d1-84a6-75fed7bfd992\" dir=\"auto\" class=\"min-h-8 text-message flex w-full flex-col items-end gap-2 whitespace-normal break-words [.text-message+\u0026amp;]:mt-5\" data-message-model-slug=\"gpt-4o\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003ch3\u003e\u003cstrong\u003e🔥 FMF Titanium Mini Factory 4.1 RCT Exhaust System - Blue Titanium - 2002-2024 Kawasaki KLX110 Series 🔥\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBoost Your Bike’s Performance and Style – Upgrade to FMF’s Premium Titanium Exhaust!\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e 2002-2024 Kawasaki KLX110, KLX110L, KLX100R, KLX110RL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 042381\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose the FMF Titanium Mini Factory 4.1 RCT Exhaust?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e💥 Power Meets Precision with FMF’s Resonance Chamber Technology™\u003c\/strong\u003e\u003cbr\u003eThe FMF Factory 4.1 RCT is designed for riders who demand peak performance. Built with \u003cstrong\u003ecutting-edge Resonance Chamber Technology\u003c\/strong\u003e, this exhaust delivers maximum power output while keeping sound levels low, allowing you to enjoy a high-performance ride with a refined exhaust note.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🌟 Built Tough with Aerospace-Grade Titanium\u003c\/strong\u003e\u003cbr\u003eConstructed with \u003cstrong\u003epremium titanium\u003c\/strong\u003e and manufactured in FMF’s Southern California factory, this exhaust is designed to withstand the demands of intense off-road riding. The \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e moves the muffler closer to the motor, centralizing mass and reducing crash damage, making it durable and reliable on any terrain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚙️ Tuned for Ultimate Versatility\u003c\/strong\u003e\u003cbr\u003eThe Factory 4.1 RCT features a \u003cstrong\u003estainless steel rear endcap\u003c\/strong\u003e with options for tuning tip inserts or a spark arrestor, ensuring easy customization for your riding needs. The \u003cstrong\u003epatented canister shape\u003c\/strong\u003e increases internal volume, enhancing sound absorption and refining exhaust pressure for an exceptional riding experience.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eResonance Chamber Technology\u003c\/strong\u003e for maximum power with reduced sound levels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium construction\u003c\/strong\u003e for unmatched durability and lightweight performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e for centralized mass and reduced crash damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented canister design\u003c\/strong\u003e with increased internal volume for enhanced sound absorption\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel rear endcap\u003c\/strong\u003e for easy tuning tip and spark arrestor installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Made in the USA\u003c\/strong\u003e with top-quality craftsmanship\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eDon’t Miss Out – Upgrade Your KLX110 with FMF Titanium Today!\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Now and Experience the Ultimate Performance and Style!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Shipping - Trusted Seller - 100% Satisfaction Guaranteed!\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003ca title=\"Kawasaki KLX110, KLX110L, and KLX110R - Moto-House Mini - Pit Bike Upgrades Engine Mods and Accessories Performance Headquarters\" href=\"https:\/\/motohousemx.com\/collections\/kawasaki-klx110-klx110l-and-klx110r-moto-house-mini-pit-bike-upgades-engine-mods-and-accessories-performance-headquarters\" target=\"_blank\"\u003eKawasaki KLX110, KLX110L, and KLX110R - Moto-House Mini - Pit Bike Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eImage is for reference only - Your item may differ\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41007244148819,"sku":"042381","price":458.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-titanium-mini-factory-41-exhaust-system-rct-blue-042381-2002-2024-kawasaki-klx110-klx110l-klx100r-and-klx110rl-627612.jpg?v=1735343375"},{"product_id":"fmf-aluminum-mini-factory-4-1-rct-blue-ti-042383-slip-on-2008-2023-kawasaki-klx140-klx140l-klx140r-and-klx140r-l","title":"FMF Aluminum Mini Factory 4.1 RCT Blue Ti - 042383 - (Slip-On) - 2008-2023 Kawasaki KLX140, KLX140L, KLX140R, and KLX140R L","description":"\u003cp\u003e\u003cstrong\u003eFMF Aluminum Mini Factory 4.1 RCT Blue Anodized Titanium Muffler with Titanium End Cap - (Slip-On) - 042383 - 2008-2023 Kawasaki KLX140, KLX140L, KLX140R, and KLX140R L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Factory 4.1 RCT for the Kawasaki KLX140 incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBlue Anodized Titanium Muffler with Titanium End Cap - Slip-On\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe exhaust system for the Kawasaki KLX140 features the latest in Resonance Chamber Technology.\u003c\/li\u003e\n\u003cli\u003eRCT Technolgy, delivering maximum power output while minimizing sound level\u003c\/li\u003e\n\u003cli\u003eFactory 4.1 RCT boasts a patented canister shape that increases internal volume, allowing for more sound absorbing material, and a unique chamber design that enhances and refines exhaust pressure.\u003c\/li\u003e\n\u003cli\u003eThe Factory 4.1 forward engineering adds to the durability of the system and ensures that it is less prone to crash damage.\u003c\/li\u003e\n\u003cli\u003eAdditionally, the exhaust is tuned with optimized core specifications for each bike and an innovative stainless steel rear endcap, allowing for easy installation of tuning tip inserts or spark arrestor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/motohousemx.com\/collections\/kawasaki-klx140-klx140l-klx140g-klx140r-f-and-klx140r-moto-house-mini-pit-bike-upgrades-engine-mods-and-accessories-performance-headquarters\" title=\"Kawasaki KLX140, KLX140L, KLX140G, KLX140R F, and KLX140R - Moto-House Mini - Pit Bike Upgrades Engine Mods and Accessories Performance Headquarters\" data-mce-href=\"https:\/\/motohousemx.com\/collections\/kawasaki-klx140-klx140l-klx140g-klx140r-f-and-klx140r-moto-house-mini-pit-bike-upgrades-engine-mods-and-accessories-performance-headquarters\" target=\"_blank\"\u003eKawasaki KLX140, KLX140L, KLX140G, KLX140R F, and KLX140R - Moto-House Mini - Pit Bike Upgrades Engine Mods and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41007400222803,"sku":"042383","price":314.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-mini-factory-41-rct-blue-ti-042383-slip-on-2008-2023-kawasaki-klx140-klx140l-klx140r-and-klx140r-l-697951.jpg?v=1735341998"},{"product_id":"fmf-stainless-steel-factory-4-1-rct-full-system-carbon-fiber-end-cap-megabomb-head-pipe-041612-2022-2023-honda-crf250r-crf250rx","title":"FMF Stainless Steel Factory 4.1 RCT (Full System)  Carbon Fiber End Cap - Megabomb Head Pipe - 041612 - 2022-2023 Honda CRF250R, CRF250RX","description":"\u003cp\u003eFMF's Stainless Steel Factory 4.1 RCT (Full System) Carbon Fiber End Cap and Megabomb Head Pipe. \u003c\/p\u003e\n\u003cp\u003eThe FMF Stainless Steel Factory 4.1 RCT exhaust system is designed with patented chamber technology to optimize power output and reduce sound levels on your 2022-2024 Honda CRF250R\/RX. With an innovative rear endcap and Factory Forward Engineering, this system is perfect for simple installation and maximum performance. The Megabomb head pipe included to maximize power output.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePatented core shape lowers sound level while maintaining maximum power output\u003c\/li\u003e\n\u003cli\u003ePatented canister shape increases internal volume for more sound absorbing material\u003c\/li\u003e\n\u003cli\u003ePatented chamber design to enhance and refine exhaust pressure\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass and is less prone to crash damage\u003c\/li\u003e\n\u003cli\u003eTuned exhaust with optimized core specifications for each application\u003c\/li\u003e\n\u003cli\u003eInnovative carbon fiber rear endcap for simple installation of tuning tip inserts or spark arrestor\u003c\/li\u003e\n\u003cli\u003eStainless Steel Megabomb included to optimize each machines power output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca title=\"See More FMF Power for Motocross bikes\" href=\"https:\/\/motohousemx.com\/search?q=See+all+FMF+exhaust+systems+\u0026amp;options%5Bprefix%5D=last\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/honda-crf250r-2010-2017-performance-package-high-performance-parts-racing-kit\" title=\"Moto-House MX – Performance Package, Performance Upgrades Engine Mods Accessories for Honda CRF250R\" target=\"_blank\"\u003eHonda CRF250R Performance Upgrades Engine Mods Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41073430134867,"sku":"041612","price":944.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-stainless-steel-factory-41-rct-full-system-carbon-fiber-end-cap-megabomb-head-pipe-041612-2022-2023-honda-crf250r-crf250rx-302249.jpg?v=1735343298"},{"product_id":"fmf-factory-4-1-rct-slip-on-carbon-fiber-end-cap-041610-2022-2024-honda-crf250r-crf250rx","title":"FMF Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 041610 - 2022-2024 Honda CRF250R, CRF250RX","description":"\u003ch2\u003e\u003cstrong\u003e✨FMF Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 041610 - 2022-2024 Honda CRF250R, CRF250RX\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe FMF Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap is specially designed for 2022-2024 Honda CRF250R and CRF250RX bikes. Featuring the latest Resonance Chamber Technology, this exhaust is designed to lower sound levels without sacrificing power output. It also has an innovative rear end cap that makes it easy to customize tuning tip inserts or spark arrestors. With Factory Forward Engineering and tuned features for optimum performance.\u003c\/p\u003e\n\u003ch3\u003eFMF Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap: \u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncorporating New RTS (Rapid Tuning System)\u003c\/li\u003e\n\u003cli\u003ePatented core shape lowers sound level while maintaining maximum power output\u003c\/li\u003e\n\u003cli\u003ePatented canister shape increases internal volume for more sound absorbing material\u003c\/li\u003e\n\u003cli\u003ePatented chamber design to enhance and refine exhaust pressure\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass and is less prone to crash damage\u003c\/li\u003e\n\u003cli\u003eMassive Power gains throughout the RPM range\u003c\/li\u003e\n\u003cli\u003eInnovative rear end cap for simple installation of tuning tip inserts or spark arrestor\u003c\/li\u003e\n\u003cli\u003eStainless \/ Aluminum Muffler \/ Carbon Fiber End Cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eFitment - 2022-2024 Honda CRF250R \/ CRF250RX \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTo see more performance products check out \u003c\/span\u003e\u003ca title=\"HONDA CRF250R PERFORMANCE UPGRADES ENGINE MODS ACCESSORIES | MOTO-HOUSE MX\" href=\"https:\/\/motohousemx.com\/collections\/honda-crf250r-2010-2017-performance-package-high-performance-parts-racing-kit\" data-mce-fragment=\"1\" target=\"_blank\"\u003eHonda CRF250R performance section\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41073434361939,"sku":"041610","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-factory-41-rct-slip-on-carbon-fiber-end-cap-041610-2022-2024-honda-crf250r-crf250rx-443969.jpg?v=1741210977"},{"product_id":"fmf-factory-4-1-rct-exhaust-with-megabomb-header-anodized-titanium-044438-2009-2020-yamaha-yfz450r-yfz450x","title":"FMF Factory 4.1 RCT Exhaust with Megabomb Header - Anodized Titanium - 044438 - 2009-2020 Yamaha YFZ450R, YFZ450X","description":"\u003cp\u003eBoost your Yamaha YFZ450R\/X's power and performance with the FMF Factory 4.1 RCT Exhaust with Megabomb Header. Its design centralizes mass, improving handling while adding up to 10% more horsepower throughout the RPM range. Anodized titanium finish and complete system included.\u003c\/p\u003e\n\u003ch6\u003e                                                                       \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\n\u003c\/h6\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"mb-4 mt-2 pl-3\" _ngcontent-hau-c31=\"\"\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" _ngcontent-hau-c31=\"\"\u003eComplete system\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" _ngcontent-hau-c31=\"\"\u003eSuperior power and performance - horsepower improved throughout the rpm range\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\" _ngcontent-hau-c31=\"\"\u003eFactory forward engineering centralizes mass, improves handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNotice:Closed Course Use Only, Item ID:044438\u003cbr\u003eType: System Configuration: Single\u003cbr\u003eConst: Titanium, Finish: Blue Anodized\u003cbr\u003eMidpipe: Stainless Steel, Endcap: Carbon\u003cbr\u003eSpark Arrestor :Screen Insert (included)\u003cbr\u003eCarb Warning :no, Quiet Insert: Included\u003cbr\u003eHeader Const: Stainless Steel, Header Type: MegaBomb\u003cbr\u003eWeight:6.8 lbs.\u003c\/p\u003e\n\u003cp\u003eFitment - 2009-2022 Yamaha YFZ450R, and 2010-211 YFZ450X \u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yfz450-performance-motocross-sport-quads-atv-moto-house-mx\" title=\"Yamaha YFZ450 Performance, Motocross, Sport - Quads \/ ATV | Moto-House MX\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"https:\/\/motohousemx.com\/collections\/yamaha-yfz450-performance-motocross-sport-quads-atv-moto-house-mx\"\u003eYamaha YFZ450 Performance, Motocross, Sport - Quads \/ ATV\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41206020079699,"sku":"044438","price":944.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-factory-41-rct-exhaust-with-megabomb-header-anodized-titanium-044438-2009-2020-yamaha-yfz450r-yfz450x-482563.jpg?v=1735341998"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-w-carbon-end-cap-044478-2023-2024-yamaha-yz450f","title":"FMF Factory 4.1 Rct Titanium Anodized Full System W\/ Carbon End Cap 044478 - 2023-2024 Yamaha YZ450F","description":"\u003ch2\u003e\u003cstrong\u003e💥 FMF Factory 4.1 RCT Titanium Full System - 044478 for Yamaha YZ450F (2023-2024)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eUnleash peak performance with the \u003cstrong\u003eFMF Factory 4.1 RCT Titanium Full System\u003c\/strong\u003e, crafted for Yamaha YZ450F models (2023-2024) and now available at Moto-House MX. Designed to redefine power and efficiency, this advanced exhaust system incorporates \u003cstrong\u003eFMF’s Resonance Chamber Technology\u003c\/strong\u003e for an impressive boost in performance while maintaining a compact, crash-resistant design.\u003c\/p\u003e\n\u003cp\u003eWith \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e, the FMF Factory 4.1 RCT positions the muffler closer to the engine for optimal mass centralization, resulting in improved handling and a more agile ride. Constructed from aerospace-grade materials, it delivers superior durability and performance for serious riders.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e➡️ Key Features of the FMF Factory 4.1 RCT System for Yamaha YZ450F:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Performance\u003c\/strong\u003e: FMF Resonance Chamber Technology delivers more power with a tuned exhaust flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrash-Resistant Design\u003c\/strong\u003e: Compact and closer to the engine, minimizing the risk of damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace-Quality Construction\u003c\/strong\u003e: Built with premium materials for long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetition Ready\u003c\/strong\u003e: Comes with a spark arrestor screen and 94dB insert for track compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Perfect Fitment for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYamaha YZ450F (2023-2024)\u003c\/li\u003e\n\u003cli\u003eYamaha YZ450FX (2024)\u003c\/li\u003e\n\u003cli\u003eYamaha WR450F (2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🚀 Upgrade your Yamaha YZ450F with the FMF Factory 4.1 RCT System for a true competitive edge!\u003c\/p\u003e\n\u003cp\u003eVisit \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 4-Stroke Performance Parts\u003c\/a\u003e for more top-grade accessories. Choose Moto-House MX, Central Florida's premier motocross shop, and ride like a champion.\u003c\/p\u003e\n\u003cp\u003eFMF Factory, 4.1 RCT, Titanium System, 044478, Yamaha YZ450F\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41393575329875,"sku":"044478","price":1237.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-factory-41-rct-titanium-anodized-full-system-w-carbon-end-cap-044478-2023-2024-yamaha-yz450f-192795.jpg?v=1735341992"},{"product_id":"fmf-megabomb-header-stainless-steel-044475-2023-2024-yamaha-yz450f","title":"FMF MegaBomb Header - Stainless Steel - 044475 - 2023-2024 Yamaha YZ450F","description":"\u003cp\u003e\u003cstrong\u003eFMF MegaBomb Header - Stainless Steel - 044475 - 2023-2024 Yamaha YZ450F\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eThe Megabomb header offers a revolutionary upgrade in Powerbomb technology, resulting in significant power gains across the board. It is expertly crafted from advanced, lightweight materials for enhanced performance.\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eFMF MegaBomb Header - Stainless Steel (Header Only)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMegabomb Is The Next Evolution In Powerbomb Technology\u003c\/li\u003e\n\u003cli\u003eSubstantial Power Increases Everywhere\u003c\/li\u003e\n\u003cli\u003eConstructed Of Extremely Lightweight Materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment Yamaha - 2024 WR450F, 2024 YZ450FX, and 2023-2024 YZ450F\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Yamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\" rel=\"noopener\" target=\"_blank\"\u003eYamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41393623990355,"sku":"044475","price":382.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-megabomb-header-stainless-steel-044475-2023-2024-yamaha-yz450f-939669.jpg?v=1735342462"},{"product_id":"fmf-megabomb-header-titanium-044476-2023-2024-yamaha-yz450f","title":"FMF MegaBomb Header - Titanium - 044476 - 2023-2024 Yamaha YZ450F","description":"\u003cp\u003e\u003cstrong\u003eFMF MegaBomb Header - Titanium - 044476 - 2023-2024 Yamaha YZ450F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Megabomb header offers a revolutionary upgrade in Powerbomb technology, resulting in significant power gains across the board. It is expertly crafted from advanced, lightweight materials for enhanced performance.\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eFMF MegaBomb Header - Titanium (Header Only)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe next evolution in Powerbomb development\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSubstantial power increases everywhere\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eConstructed of extremely lightweight military titanium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIncreases horsepower as much as 5hp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eProduces long header torque combined with short header over-rev\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eHelps reduce sound output, as much as 1.5db\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eMade from premium American Ti-Metal material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003ePatent pending technology\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment Yamaha - 2024 WR450F, 2024 YZ450FX, and 2023-2024 YZ450F\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Yamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\" target=\"_blank\" rel=\"noopener\"\u003eYamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41393629823059,"sku":"044476","price":472.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-megabomb-header-titanium-044476-2023-2024-yamaha-yz450f-165758.jpg?v=1735342474"},{"product_id":"fmf-megabomb-header-stainless-steel-044449-2019-2022-yamaha-yz250f","title":"FMF MegaBomb Header - Stainless Steel - 044449 - 2019-2024 Yamaha YZ250F","description":"\u003cp\u003e\u003cstrong\u003eFMF MegaBomb Header - Stainless Steel - 044449 - 2019-2024 Yamaha YZ250F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Megabomb header offers a revolutionary upgrade in Powerbomb technology, resulting in significant power gains across the board. It is expertly crafted from advanced, lightweight materials for enhanced performance.\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eFMF MegaBomb Header - Stainless Steel (Header Only)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMegabomb Is The Next Evolution In Powerbomb Technology\u003c\/li\u003e\n\u003cli\u003eSubstantial Power Increases Everywhere\u003c\/li\u003e\n\u003cli\u003eConstructed Of Extremely Lightweight Materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Yamaha - 2020-2023 \u003cspan\u003eYZ250FX,\u003c\/span\u003e 2020-2021 YZ250FX, and 2019-2024 YZ2450F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\" title=\"Yamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories | Moto-House MX\" target=\"_blank\"\u003eYamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41393663049811,"sku":"044449","price":382.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-megabomb-header-stainless-steel-044449-2019-2024-yamaha-yz250f-297920.jpg?v=1735342463"},{"product_id":"fmf-megabomb-header-titanium-044450-2019-2025-yamaha-yz250f","title":"FMF MegaBomb Header - Titanium - 044450 - 2019-2025 Yamaha YZ250F","description":"\u003ch2\u003e\u003cstrong\u003eFMF MegaBomb Header - Titanium - 044450 - 2019-2023 Yamaha YZ250F\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"\" data-end=\"612\" data-start=\"391\"\u003eIf you’re the kind of rider who lives for wide-open straights, explosive corner exits, and a smoother hit off the throttle—then it’s time to meet your new favorite mod: the \u003cstrong data-end=\"611\" data-start=\"564\"\u003eFMF Megabomb Titanium Header (Part #044450)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"812\" data-start=\"614\"\u003eThis isn’t just a pipe. It’s the next stage of FMF’s \u003cstrong data-end=\"690\" data-start=\"667\"\u003ePowerbomb evolution\u003c\/strong\u003e, built to crank performance across the rev range and transform your YZ250F, YZ250FX, or WR250F into a next-level machine.\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eFMF MegaBomb Header - Titanium (Header Only)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe next evolution in Powerbomb development\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSubstantial power increases everywhere\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eConstructed of extremely lightweight military titanium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIncreases horsepower as much as 5hp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eProduces long header torque combined with short header over-rev\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eHelps reduce sound output, as much as 1.5db\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eMade from premium American Ti-Metal material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003ePatent pending technology\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Yamaha:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2020-2025    Yamaha    YZ 250FX\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003e2020-2021, 2023-2025    Yamaha    WR 250F\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2019-2025    Yamaha    YZ 250F\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2431\" data-start=\"2388\"\u003e\u003cstrong data-end=\"2431\" data-start=\"2390\"\u003eThe Bottom Line: More Pull, Less Bull\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"2707\" data-start=\"2433\"\u003eWhether you’re lining up on the gate or pushing hard through a backwoods trail, the \u003cstrong data-end=\"2540\" data-start=\"2517\"\u003eFMF Megabomb Header\u003c\/strong\u003e gives your Yamaha the torque, tone, and throttle response it deserves. It’s the perfect way to level up your FMF build—and once you bolt it on, there’s no going back.\u003c\/p\u003e\n\u003ch3 class=\"\" data-end=\"2746\" data-start=\"2709\"\u003e👉 Ready to unleash the Megabomb?\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"2832\" data-start=\"2748\"\u003e\u003cstrong data-end=\"2832\" data-start=\"2748\"\u003eClick here to grab yours now and feel the difference where it counts—on the gas.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Yamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\" rel=\"noopener\" target=\"_blank\"\u003eYamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41393669603411,"sku":"044450","price":472.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-megabomb-header-titanium-044450-2019-2023-yamaha-yz250f-411239.jpg?v=1735342463"},{"product_id":"fmf-4-1-rct-exhaust-system-with-megabomb-aluminum-044456-2019-2022-yamaha-yz250f-yz250fx","title":"FMF 4.1 RCT Exhaust System with MegaBomb - Aluminum- 044456 - 2019-2024 Yamaha YZ250F, YZ250FX","description":"\u003ch3\u003e✨Upgrade Your Yamaha YZ250F (2019-2024) with the FMF 4.1 RCT Exhaust System\u003c\/h3\u003e\n\u003cp\u003eAre you looking to increase your Yamaha YZ250F or YZ250FX to peak performance? The \u003cstrong\u003eFMF 4.1 RCT Exhaust System with MegaBomb\u003c\/strong\u003e is your ultimate solution for unmatched horsepower, weight savings, and precision tuning. Here’s why this system is a game-changer for your dirt bike:\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e➡️ What Problem Does The FMF 4.1 RCT Exhaust System Solve?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderwhelming Stock Performance\u003c\/strong\u003e: The stock exhaust can limit your bike’s true potential. The FMF 4.1 RCT eliminates these bottlenecks by significantly enhancing power and responsiveness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Weight\u003c\/strong\u003e: Traditional exhaust systems add unnecessary bulk. The FMF system cuts weight dramatically, giving you better control and handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimited Customization\u003c\/strong\u003e: Lack of tuning options can leave you stuck with subpar performance. With FMF's new \u003cstrong\u003eRapid Tuning System (RTS)\u003c\/strong\u003e, adjusting for your riding style and environment is effortless.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003e➡️ Why Choose the FMF 4.1 RCT Exhaust System?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Power Gains\u003c\/strong\u003e: With the included MegaBomb header, you'll experience \u003cstrong\u003emassive power boosts across the RPM range\u003c\/strong\u003e, ensuring smoother acceleration and better performance in every gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability You Can Trust\u003c\/strong\u003e: Built from aerospace-grade materials, this system is engineered for toughness while remaining lightweight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Handling\u003c\/strong\u003e: By centralizing mass and reducing weight, it complements Factory Forward Engineering, allowing you to ride with confidence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Tuning Made Simple\u003c\/strong\u003e: The RTS feature allows quick and easy adjustments, perfect for racers and enthusiasts who demand precision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack-Ready \u0026amp; Trail-Legal\u003c\/strong\u003e: The included spark arrestor ensures you’re ready for the track or backcountry, complying with legal standards.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003e\u003cstrong\u003e➡️ How Does the FMF Exhaust Increase Horsepower?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eResonance Chamber Technology™\u003c\/strong\u003e: FMF’s advanced design maximizes airflow and reduces backpressure, ensuring your engine operates at peak efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMegaBomb Header\u003c\/strong\u003e: This innovative header improves exhaust flow while enhancing low- to mid-range power, offering a noticeable difference in throttle response.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003e➡️ FMF 4.1 RCT Features:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Power Gains\u003c\/strong\u003e: Experience smoother rides with improved power across the RPM spectrum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerospace-Grade Materials\u003c\/strong\u003e: Lightweight yet durable for demanding conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid Tuning System (RTS)\u003c\/strong\u003e: Fine-tune your setup quickly and easily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Arrestor Screen Insert\u003c\/strong\u003e: Ride confidently on trails while meeting compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStylish \u0026amp; Functional Design\u003c\/strong\u003e: Built to look as good as it performs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eTake Your Yamaha YZ250F to the Next Level\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe FMF 4.1 RCT Exhaust System with MegaBomb Header is more than an upgrade—it’s a transformation for your Yamaha YZ250F (2019-2024) or YZ250FX (2020-2023). Whether you're racing competitively or tearing up trails, this exhaust system provides the power, durability, and control you need to dominate every ride.\u003c\/p\u003e\n\u003cp\u003e🚨Don’t settle for less—unlock your bike's full potential today! \u003cstrong\u003eOrder now and feel the FMF difference.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Yamaha YZ250F, YZ250FX Performance Parts and Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz250f-yz250fx-performance-parts-and-accessories\" target=\"_blank\"\u003eYamaha YZ250F, YZ250FX Performance Parts and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMoto-House MX - Choice of Champions - \u003c\/span\u003e\u003c\/strong\u003eBest Motocross Shop in Central Florida\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41393719378003,"sku":"044456","price":967.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-41-rct-exhaust-system-with-megabomb-aluminum-044456-2019-2024-yamaha-yz250f-yz250fx-460075.jpg?v=1735341948"},{"product_id":"fmf-4-1-rct-exhaust-system-with-megabomb-anodized-titanium-044457-2019-2024-yamaha-yz250f-yz250fx","title":"FMF 4.1 RCT Exhaust System with MegaBomb - Anodized Titanium- 044457 - 2019-2024 Yamaha YZ250F, YZ250FX","description":"\u003ch2\u003e🔥 \u003cstrong\u003eFMF 4.1 RCT Exhaust System with MegaBomb - Anodized Titanium - 2019-2024 Yamaha YZ250F, YZ250FX - Unleash the Beast!\u003c\/strong\u003e 🔥\u003c\/h2\u003e\n\u003cp data-sourcepos=\"7:1-7:97\"\u003e\u003cstrong\u003eDominate the track and leave the competition in the dust with the FMF 4.1 RCT Exhaust System!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"9:1-9:332\"\u003eThis is the ultimate performance upgrade for your 2019-2024 Yamaha YZ250F or 2020-2024 YZ250FX. \u003cspan class=\"citation-0 recitation citation-end-0\"\u003eEngineered with aerospace-grade materials and FMF's revolutionary Resonance Chamber Technology™, this system delivers massive power gains throughout the entire RPM range, giving you the edge you need to conquer any terrain.\u003csup class=\"superscript\" data-turn-source-index=\"1\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-42 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-42\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-42\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-42 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2020-2023    Yamaha    YZ 250 FX \u003cbr\u003e2019-2024    Yamaha    YZ 250 F\u003c\/p\u003e\n\u003cp data-sourcepos=\"11:1-11:59\"\u003e\u003cstrong\u003e➡️ What Problem Does The FMF 4.1 RCT Exhaust System Solve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"13:1-16:0\"\u003e\n\u003cli data-sourcepos=\"13:1-13:201\"\u003e\n\u003cstrong\u003eRestricted Power:\u003c\/strong\u003e Stock exhaust systems can choke your bike's true potential. The FMF 4.1 RCT unlocks hidden horsepower and torque, allowing your engine to breathe freely and perform at its peak.\u003c\/li\u003e\n\u003cli data-sourcepos=\"14:1-14:141\"\u003e\n\u003cstrong\u003eExcess Weight:\u003c\/strong\u003e Heavy exhausts can weigh your bike down. The FMF 4.1 RCT is significantly lighter, improving handling and acceleration.\u003c\/li\u003e\n\u003cli data-sourcepos=\"15:1-16:0\"\u003e\n\u003cstrong\u003eLack of Durability:\u003c\/strong\u003e Inferior exhausts can corrode and fail. \u003cspan class=\"citation-1 recitation citation-end-1\"\u003eThe FMF 4.1 RCT is built to last with aerospace-grade materials and meticulous craftsmanship.\u003csup class=\"superscript\" data-turn-source-index=\"2\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-43 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-43\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-43\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-43 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-sourcepos=\"17:1-17:46\"\u003e\u003cstrong\u003e➡️ Why Choose the FMF 4.1 RCT Exhaust System?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"19:1-25:0\"\u003e\n\u003cli data-sourcepos=\"19:1-19:90\"\u003e\n\u003cstrong\u003eUnleash Maximum Power:\u003c\/strong\u003e Experience explosive power gains across the entire RPM range.\u003c\/li\u003e\n\u003cli data-sourcepos=\"20:1-20:87\"\u003e\n\u003cstrong\u003eLightweight Design:\u003c\/strong\u003e Shed precious pounds for improved agility and responsiveness.\u003c\/li\u003e\n\u003cli data-sourcepos=\"21:1-21:112\"\u003e\n\u003cstrong\u003e\u003cspan class=\"citation-2 recitation\"\u003eUnmatched Durability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-2 recitation citation-end-2\"\u003e Constructed from aerospace-grade titanium for long-lasting performance.\u003csup class=\"superscript\" data-turn-source-index=\"3\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-44 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-44\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-44\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-44 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"22:1-22:82\"\u003e\n\u003cstrong\u003eEnhanced Sound:\u003c\/strong\u003e Enjoy the deep, throaty growl of a true performance exhaust.\u003c\/li\u003e\n\u003cli data-sourcepos=\"23:1-23:93\"\u003e\n\u003cstrong\u003eEasy Tuning:\u003c\/strong\u003e Fine-tune your power delivery with the included Rapid Tuning System (RTS).\u003c\/li\u003e\n\u003cli data-sourcepos=\"24:1-25:0\"\u003e\n\u003cstrong\u003e\u003cspan class=\"citation-3 recitation\"\u003eImproved Centralization of Mass:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-3 recitation citation-end-3\"\u003e The shorter muffler design improves handling and reduces the risk of crash damage.\u003csup class=\"superscript\" data-turn-source-index=\"4\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-45 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-45\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-45\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-45 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-sourcepos=\"26:1-26:25\"\u003e\u003cstrong\u003e➡️ FMF 4.1 RCT Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"28:1-34:0\"\u003e\n\u003cli data-sourcepos=\"28:1-28:100\"\u003e\n\u003cstrong\u003e\u003cspan class=\"citation-4 recitation\"\u003eResonance Chamber Technology™:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-4 recitation citation-end-4\"\u003e Maximizes power output and improves exhaust flow.\u003csup class=\"superscript\" data-turn-source-index=\"5\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-46 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-46\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-46\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-46 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"29:1-29:97\"\u003e\n\u003cstrong\u003e\u003cspan class=\"citation-5 recitation\"\u003eMegaBomb Header:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-5 recitation citation-end-5\"\u003e Increases horsepower and torque across the entire RPM range.\u003csup class=\"superscript\" data-turn-source-index=\"6\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-47 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-47\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-47\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-47 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"30:1-30:118\"\u003e\n\u003cstrong\u003e\u003cspan class=\"citation-6 recitation\"\u003eAerospace-Grade Titanium Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-6 recitation citation-end-6\"\u003e Ensures superior strength, durability, and heat resistance.\u003csup class=\"superscript\" data-turn-source-index=\"7\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-48 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-48\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-48\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-48 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"31:1-31:113\"\u003e\n\u003cstrong\u003e\u003cspan class=\"citation-7 recitation\"\u003eRapid Tuning System (RTS):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-7 recitation citation-end-7\"\u003e Allows for quick and easy adjustments to fine-tune power delivery.\u003csup class=\"superscript\" data-turn-source-index=\"8\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-49 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-49\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-49\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-49 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"32:1-32:99\"\u003e\n\u003cstrong\u003e\u003cspan class=\"citation-8 recitation\"\u003eSpark Arrestor Screen Insert:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-8 recitation citation-end-8\"\u003e Provides added safety and meets USFS regulations.\u003csup class=\"superscript\" data-turn-source-index=\"9\" _ngcontent-ng-c1159609472=\"\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"button-container hide-from-message-actions ng-star-inserted\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\"\u003e   \u003cbutton aria-controls=\"sources\" class=\"mat-mdc-tooltip-trigger button image-fade-on hide-from-message-actions\" aria-expanded=\"false\" aria-describedby=\"cdk-describedby-message-ng-1-34\" _ngcontent-ng-c1554534809=\"\" hide-from-message-actions=\"\" jslog=\"220646;track:generic_click,impression\" cdk-describedby-host=\"ng-1\"\u003e\u003c\/button\u003e\u003c!----\u003e\u003c\/span\u003e\n\u003cdiv class=\"container ng-tns-c3265549030-50 hide\" _ngcontent-ng-c3265549030=\"\" jslog=\"220997;BardVeMetadataKey:[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[1,null,1]]\"\u003e\n\u003c!----\u003e\n\u003cdiv class=\"carousel-container ng-tns-c3265549030-50\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv class=\"carousel-content ng-tns-c3265549030-50\" _ngcontent-ng-c3265549030=\"\"\u003e\n\u003cdiv data-test-id=\"sources-carousel-source\" class=\"sources-carousel-source ng-tns-c3265549030-50 hide ng-star-inserted\" _ngcontent-ng-c3265549030=\"\"\u003e\u003c!----\u003e\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"33:1-34:0\"\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Proudly manufactured in Southern California.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-sourcepos=\"35:1-35:45\"\u003e\u003cstrong\u003e🚀 Take Your Yamaha YZ250F to the Next Level\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"37:1-37:132\"\u003eDon't settle for mediocrity. Upgrade to the FMF 4.1 RCT Exhaust System and experience the thrill of unleashed power and performance.\u003c\/p\u003e\n\u003cp data-sourcepos=\"39:1-39:158\"\u003e\u003cstrong\u003eLimited quantities available! Don't miss out on this incredible opportunity to transform your ride. Click \"Buy It Now\" and experience the FMF difference!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eIncludes spark arrestor screen insert\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca title=\"Yamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\" rel=\"noopener\" target=\"_blank\"\u003eYamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41393733107795,"sku":"044457","price":1237.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-41-rct-exhaust-system-with-megabomb-anodized-titanium-044457-2019-2024-yamaha-yz250f-yz250fx-758805.jpg?v=1735341946"},{"product_id":"fmf-megabomb-header-with-midpipe-titanium-044459-2020-2022-yamaha-yz450f","title":"FMF Megabomb Header with MidPipe - Titanium - 044459 - 2020-2022 Yamaha YZ450F","description":"\u003cp\u003e\u003cstrong\u003eFMF Megabomb Header with Midpipe - Titanium - 044459 - 2020-2022 Yamaha YZ450F\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Megabomb header offers a revolutionary upgrade in Powerbomb technology, resulting in significant power gains across the board. It is expertly crafted from advanced, lightweight materials for enhanced performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e FMF Megabomb Header with Midpipe - Titanium (Header Only):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe next evolution in Powerbomb development\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSubstantial power increases everywhere\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eConstructed of extremely lightweight military titanium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIncreases horsepower as much as 5hp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eProduces long header torque combined with short header over-rev\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eHelps reduce sound output, as much as 1.5db\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eMade from premium American Ti-Metal material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003ePatent pending technology\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment Yamaha - 2020-2022 Yamaha YZ450F, and 2019-2023 Yamaha YZ450FX\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Yamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories | Moto-House MX\" href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\" target=\"_blank\" rel=\"noopener\"\u003eYamaha 4-Stroke Dirt Bikes - Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions - Best Motocross Shop in Central Florida\u003c\/strong\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41416490221651,"sku":"044459","price":472.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-megabomb-header-with-midpipe-titanium-044459-2020-2022-yamaha-yz450f-869291.jpg?v=1735342463"},{"product_id":"fmf-ti-factory-4-1-rct-slip-on-factory-4-1-rct-slip-on-muffler-042286-2012-2015-kawasaki-kx450f","title":"FMF Ti Factory 4.1 RCT (Slip-On) Factory 4.1 RCT Slip-On Muffler - 042286 - 2012-2015 Kawasaki KX450F","description":"\u003ch2 data-start=\"0\" data-end=\"85\"\u003e\u003cstrong data-start=\"4\" data-end=\"83\"\u003e✨FMF 042286 Factory 4.1 RCT Slip-On Muffler – Maximum Power for Your KX450F!\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"87\" data-end=\"517\"\u003eTake your \u003cstrong data-start=\"97\" data-end=\"126\"\u003e2012-2015 Kawasaki KX450F\u003c\/strong\u003e to the next level with the \u003cstrong data-start=\"154\" data-end=\"200\"\u003eFMF 042286 Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e. Engineered with \u003cstrong data-start=\"218\" data-end=\"257\"\u003eFMF’s Resonance Chamber Technology™\u003c\/strong\u003e, this exhaust isn’t just about making noise—it’s about delivering \u003cstrong data-start=\"324\" data-end=\"410\"\u003eserious horsepower gains, optimized mass centralization, and unbeatable durability\u003c\/strong\u003e. Whether you’re chasing podiums or just ripping up the trails, this is the upgrade your KX450F deserves!\u003c\/p\u003e\n\u003ch3 data-start=\"519\" data-end=\"571\"\u003e\u003cstrong data-start=\"524\" data-end=\"569\"\u003eWhy You Need the FMF Factory 4.1 RCT Slip-On:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"572\" data-end=\"1032\"\u003e✔ \u003cstrong data-start=\"574\" data-end=\"607\"\u003eResonance Chamber Technology™\u003c\/strong\u003e – Reduces noise while boosting performance.\u003cbr data-start=\"651\" data-end=\"654\"\u003e✔ \u003cstrong data-start=\"656\" data-end=\"687\"\u003eFactory Forward Engineering\u003c\/strong\u003e – Compact design shifts mass closer to the motor for better handling.\u003cbr data-start=\"757\" data-end=\"760\"\u003e✔ \u003cstrong data-start=\"762\" data-end=\"784\"\u003eTitanium Toughness\u003c\/strong\u003e – Aerospace-grade materials, lightweight yet ultra-durable.\u003cbr data-start=\"844\" data-end=\"847\"\u003e✔ \u003cstrong data-start=\"849\" data-end=\"875\"\u003ePatented Core Geometry\u003c\/strong\u003e – Tuned for max power output while meeting AMA \u0026amp; FIM sound regulations.\u003cbr data-start=\"947\" data-end=\"950\"\u003e✔ \u003cstrong data-start=\"952\" data-end=\"999\"\u003eSpark Arrestor \u0026amp; Quiet Core Insert Included\u003c\/strong\u003e – Ride anywhere without worry!\u003c\/p\u003e\n\u003ch3 data-start=\"1034\" data-end=\"1079\"\u003e\u003cstrong data-start=\"1038\" data-end=\"1077\"\u003eDominate the Track – Upgrade Today!\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1080\" data-end=\"1289\"\u003eWith \u003cstrong data-start=\"1085\" data-end=\"1126\"\u003eFMF’s Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e, your \u003cstrong data-start=\"1133\" data-end=\"1155\"\u003eKX450F (2012-2015)\u003c\/strong\u003e will be lighter, faster, and louder (but track-legal). Get the \u003cstrong data-start=\"1219\" data-end=\"1254\"\u003ebest exhaust tech on the market\u003c\/strong\u003e—don’t wait, \u003cstrong data-start=\"1267\" data-end=\"1287\"\u003eorder yours now!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1291\" data-end=\"1347\"\u003e\u003cstrong data-start=\"1294\" data-end=\"1342\"\u003e❇️ Limited Stock – Grab Yours Before It’s Gone!\u003c\/strong\u003e \u003c\/p\u003e\n\u003ch4 data-start=\"1349\" data-end=\"1365\"\u003e\u003cstrong data-start=\"1354\" data-end=\"1363\"\u003eFAQs:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"1366\" data-end=\"1478\"\u003e❓\u003cstrong\u003e \u003cem data-start=\"1368\" data-end=\"1399\"\u003eDoes this fit a 2016+ KX450F?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr data-start=\"1399\" data-end=\"1402\"\u003eNo, this model is specifically designed for \u003cstrong data-start=\"1446\" data-end=\"1475\"\u003e2012-2015 Kawasaki KX450F\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1480\" data-end=\"1619\"\u003e❓ \u003cstrong\u003e\u003cem data-start=\"1482\" data-end=\"1517\"\u003eDoes it include a spark arrestor?\u003c\/em\u003e\u003c\/strong\u003e\u003cbr data-start=\"1517\" data-end=\"1520\"\u003eYes! A \u003cstrong data-start=\"1527\" data-end=\"1572\"\u003espark arrestor and Quiet Core 94dB insert\u003c\/strong\u003e are included for noise and trail compliance.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e                                                                       \u003ca title=\"dirt bike off road motorcycle motocross FMF exhaust pipes\" href=\"https:\/\/motohousemx.com\/search?type=product\u0026amp;q=FMF\" target=\"_blank\"\u003eSee More Products from FMF\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-kx450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\" title=\"Kawasaki KX450F Performance Parts and Accessories | Moto-House MX\" rel=\"noopener\" target=\"_blank\"\u003eKawasaki KX450F Performance Parts and Accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions \u003c\/strong\u003e- Best Motocross Shop in Central Florida \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41549688012883,"sku":"042286","price":674.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-ti-factory-41-rct-slip-on-factory-41-rct-slip-on-muffler-042286-2012-2015-kawasaki-kx450f-823790.jpg?v=1735343378"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/collections\/FMFM_4_Stroke_exhaust.png?v=1782011150","url":"https:\/\/motohousemx.com\/collections\/fmf-4-stroke-performance-exhaust-factory-4-1-rct-megabomb-powerbomb-powercore-4-q4-moto-house-mx.oembed?page=8","provider":"Moto-House MX","version":"1.0","type":"link"}