{"product_id":"fmf-045586-factory-4-1-rct-slip-on-muffler-ktm-250-350-450-sx-f-xc-f-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler (Blue Titanium\/Carbon) 045586 - KTM 250 \/ 350 \/ 450 SX-F \/ XC-F 2015-2018","description":"\u003ch2\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler (Blue Anodized Titanium \/ Carbon Fiber End Cap) 045586 - KTM 250 \/ 350 \/ 450 SX-F \/ XC-F 2015-2018\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e utilizes patented Resonance Chamber Technology to lower decibel levels while maintaining peak power output[cite: 1]. The internal chamber ducts increase internal volume to enhance exhaust scavenging, generating performance gains across the entire powerband[cite: 1].\u003c\/p\u003e\n\u003cp\u003eDesigned with FMF's Factory Forward Engineering to centralize mass and improve durability against crash damage[cite: 1], this lightweight blue anodized titanium muffler features a carbon fiber end cap. It includes a QuietCore 94 dB insert and a spark arrestor[cite: 1] to meet AMA and FIM sound regulations[cite: 1].\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRCT patented core shape reduces decibels without sacrificing peak power output[cite: 1].\u003c\/li\u003e\n\u003cli\u003eInternal ducts expand volume to improve exhaust flow and broad power delivery[cite: 1].\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass and minimizes crash vulnerability[cite: 1].\u003c\/li\u003e\n\u003cli\u003eComes equipped with a QuietCore 94 dB insert and spark arrestor[cite: 1].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/p\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\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\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2017\u003c\/td\u003e\n\u003ctd\u003eKTM\u003c\/td\u003e\n\u003ctd\u003e450 SX-F Factory Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2018\u003c\/td\u003e\n\u003ctd\u003eKTM\u003c\/td\u003e\n\u003ctd\u003e250 SX-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2018\u003c\/td\u003e\n\u003ctd\u003eKTM\u003c\/td\u003e\n\u003ctd\u003e250 XC-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2018\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\u003e2016-2018\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\u003e2016-2018\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\u003e2016-2018\u003c\/td\u003e\n\u003ctd\u003eKTM\u003c\/td\u003e\n\u003ctd\u003e450 XC-F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Can this slip-on muffler mount to the stock header?\u003c\/b\u003e\u003cbr\u003eA: Yes, it is fully compatible with either the stock header or an aftermarket FMF header[cite: 1].\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Are the spark arrestor and quiet insert included?\u003c\/b\u003e\u003cbr\u003eA: Yes, both a spark arrestor and a QuietCore 94 dB insert come pre-integrated into the package[cite: 1].\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When installing titanium slip-on systems, ensure the mid-pipe connection is completely free of oils or fingerprints before initial heat cycles to prevent permanent discoloration of the anodized finish.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\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\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Chains\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eMotorcycle Tools \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAbout Moto-House MX\u003c\/h3\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. We pride ourselves on great customer service, and every item ships FAST - straight to your door.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions\u003c\/strong\u003e - Your premier powersports source with great customer service and lightning-fast shipping straight to your door.\u003c\/i\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":41549730545747,"sku":"045586","price":617.49,"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-045586-2016-2018-ktm-250-sx-f-350-sx-f-and-450-sx-f-977149.jpg?v=1741152586","url":"https:\/\/motohousemx.com\/products\/fmf-045586-factory-4-1-rct-slip-on-muffler-ktm-250-350-450-sx-f-xc-f-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}