{"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","url":"https:\/\/motohousemx.com\/products\/fmf-042369-slip-on-muffler-kawasaki-kx450f-kx450x-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}