{"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","url":"https:\/\/motohousemx.com\/products\/fmf-045633-factory-4-1-rct-slip-on-muffler-gasgas-husqvarna-ktm-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}