{"title":"Yamaha YZ450F Muffler","description":"\u003cp\u003eBrowse 8 muffler matched to the 2001–2026 Yamaha YZ450F by fitment data.\u003c\/p\u003e\u003cp\u003eLooking for something else for this bike? \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eSee all Yamaha YZ450F parts\u003c\/a\u003e. Not sure your model year is covered? Use the vehicle search or \u003ca href=\"\/pages\/contact\"\u003econtact us\u003c\/a\u003e before ordering and we will confirm fitment.\u003c\/p\u003e","products":[{"product_id":"fmf-racing-yamaha-yz450f-03-05-wr450f-03-06-q4-s-a-muffler","title":"FMF Racing Yamaha YZ450F 03-05\/WR450F 03-06 Q4 S\/A Muffler","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-wr450f-parts\"\u003eYamaha WR450F\u003c\/a\u003e (2003–2006); \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2003–2005).\u003c\/p\u003e\nA 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the \"Bomb\" at this key point, the expansion and contraction of exhaust sonics through the system resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a \"pre-muffler\" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2006\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2005\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100657643607,"sku":"FMF044199","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/178c55cabfd458bde7afdb6f89cebd0c_0b983adf-3bfc-48ac-a9a7-811978cfcaa4.jpg?v=1785819260"},{"product_id":"fmf-racing-yamaha-yz450f-07-09-wr450f-07-15-ss-powerbomb-header","title":"FMF Racing Yamaha YZ450F 07-09\/WR450F 07-15 SS Powerbomb Header","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-wr450f-parts\"\u003eYamaha WR450F\u003c\/a\u003e (2003–2015); \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2007–2009).\u003c\/p\u003e\n\u003cp\u003eThe redesigned PowerBomb is a 4-stroke header that incoporates FMF's patented PowerBomb module at a precise location in the initial stage of the header, resulting in performance gains and improved flow.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOuter chamber allows the air to expand, cool and ramp back up at velocity\u003c\/li\u003e\n\u003cli\u003eIncreased flow up to 10%\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2015\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2009\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100657840215,"sku":"FMF044225","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/bc7ececf3d015b47e6046d697d3e69c2_7b2d9a57-0c75-4671-a2f1-95f5b622c583.jpg?v=1785819262"},{"product_id":"fmf-racing-yamaha-yz250f-06-09-yz450f-06-09-wr250f-07-13-450f-07-11-powercore-4-muffler","title":"FMF Racing Yamaha YZ250F 06-09\/YZ450F 06-09\/WR250F 07-13\/450F 07-11 Powercore 4 Muffler","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-wr250f-parts\"\u003eYamaha WR250F\u003c\/a\u003e (2003–2013); \u003ca href=\"\/collections\/yamaha-yz250f-parts\"\u003eYamaha YZ250F\u003c\/a\u003e (2006–2013); \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2006–2013).\u003c\/p\u003e\nThe PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength. Aluminum performance muffler with durable stainless steel components. Completely redesigned for all late model applications. Removable spark arrestor included. Aluminum slip-on developed to increase the horsepower and torque throughout the entire power band.\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2013\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR250F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2011\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2009\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2009\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100657905751,"sku":"FMF044228","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/fb4c21d5c92b263c458b4943d1e268f4_76fb70b4-e691-49db-bf6f-731fff8ef3f5.jpg?v=1785819263"},{"product_id":"fmf-racing-yamaha-yz250f-06-09-yz450f-06-09-wr250f-07-13-450f-07-11-q4-s-a-muffler","title":"FMF Racing Yamaha YZ250F 06-09\/YZ450F 06-09\/WR250F 07-13\/450F 07-11 Q4 S\/A Muffler","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-wr250f-parts\"\u003eYamaha WR250F\u003c\/a\u003e (2003–2013); \u003ca href=\"\/collections\/yamaha-yz250f-parts\"\u003eYamaha YZ250F\u003c\/a\u003e (2006–2013); \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2006–2013).\u003c\/p\u003e\nA 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the \"Bomb\" at this key point, the expansion and contraction of exhaust sonics through the system resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a \"pre-muffler\" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2013\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR250F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2011\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2009\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2009\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100657971287,"sku":"FMF044232","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/178c55cabfd458bde7afdb6f89cebd0c_4cbcc0e2-48d5-465b-aa8e-43df8b9f596e.jpg?v=1785819264"},{"product_id":"fmf-racing-yamaha-yz450f-10-13-powercore-4-hex-muffler","title":"FMF Racing Yamaha YZ450F 10-13 Powercore 4 Hex Muffler","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2006–2013).\u003c\/p\u003e\nThe PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength. Aluminum performance muffler with durable stainless steel components. Completely redesigned for all late model applications. Removable spark arrestor included. Aluminum slip-on developed to increase the horsepower and torque throughout the entire power band.\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2013\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100658298967,"sku":"FMF044396","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/fb4c21d5c92b263c458b4943d1e268f4_bbc7cc82-0905-461f-8642-6e150b52731c.jpg?v=1785819267"},{"product_id":"fmf-racing-yamaha-yz450f-18-26-wr450f-2019-yz450fx-19-24-powercore-4-hex-muffler","title":"FMF Racing Yamaha YZ450F 18-26\/WR450F (2019)\/ YZ450FX 19-24 Powercore 4 Hex Muffler","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-wr450f-parts\"\u003eYamaha WR450F\u003c\/a\u003e (2019–2026); \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2018–2026); \u003ca href=\"\/collections\/yamaha-yz450fx-parts\"\u003eYamaha YZ450FX\u003c\/a\u003e (2019–2026).\u003c\/p\u003e\nThe PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength. Aluminum performance muffler with durable stainless steel components. Completely redesigned for all late model applications. Removable spark arrestor included. Aluminum slip-on developed to increase the horsepower and torque throughout the entire power band.\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003ctd\u003eBase\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\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F 50th Anniversary Edition\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F 70th Anniversary Edition\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023,2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F Monster Energy Yamaha Racing Edition\u003c\/td\u003e\n\u003ctd\u003eBase\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\u003eYZ450FX\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100658626647,"sku":"FMF044441","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/fb4c21d5c92b263c458b4943d1e268f4_7fc6642f-5dec-4adf-ab97-8b47578713e6.jpg?v=1785819271"},{"product_id":"fmf-racing-yamaha-yz450f-18-26-wr450f-2019-yz450fx-19-24-hex-q4-s-a-muffler","title":"FMF Racing Yamaha YZ450F 18-26\/WR450F (2019)\/ YZ450FX 19-24 Hex Q4 S\/A Muffler","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-wr450f-parts\"\u003eYamaha WR450F\u003c\/a\u003e (2019–2026); \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2018–2026); \u003ca href=\"\/collections\/yamaha-yz450fx-parts\"\u003eYamaha YZ450FX\u003c\/a\u003e (2019–2026).\u003c\/p\u003e\nA 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the \"Bomb\" at this key point, the expansion and contraction of exhaust sonics through the system resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a \"pre-muffler\" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003ctd\u003eBase\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\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F 50th Anniversary Edition\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F 70th Anniversary Edition\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023,2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F Monster Energy Yamaha Racing Edition\u003c\/td\u003e\n\u003ctd\u003eBase\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\u003eYZ450FX\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100658692183,"sku":"FMF044442","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/178c55cabfd458bde7afdb6f89cebd0c_e47f8e25-ca4a-4cc3-929e-e346602d56df.jpg?v=1785819271"},{"product_id":"fmf-racing-yamaha-yz450f-23-25-al-factory-4-1-rct-w-r-carbon-cap-comp-sys-w-ss-mb-header-mid-pipe","title":"FMF Racing Yamaha YZ450F 23-25 AL Factory 4.1 RCT w\/ R. Carbon Cap Comp Sys w\/SS MB Header\/Mid Pipe","description":"\u003cp class=\"wmw-fits\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e \u003ca href=\"\/collections\/yamaha-yz450f-parts\"\u003eYamaha YZ450F\u003c\/a\u003e (2019–2025).\u003c\/p\u003e\n\u003cp\u003eThe Factory 4.1 RCT 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\u003cul\u003e\n\u003cli\u003eHighest-quality proprietary blend of alloy grade titanium\u003c\/li\u003e\n\u003cli\u003eBlue anodized titanium muffler with carbon end cap\u003c\/li\u003e\n\u003cli\u003eMassive power gains throughout the RPM range\u003c\/li\u003e\n\u003cli\u003eRapid Tuning System (RTS)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F 50th Anniversary Edition\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023,2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F Monster Energy Yamaha Racing Edition\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450FX\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":44100659216471,"sku":"FMF044477","price":1074.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/7099\/2215\/files\/71dc6d2ad2c94aee54c8a61c39cc680d.jpg?v=1785819277"}],"url":"https:\/\/westfieldmoto.com\/collections\/yamaha-yz450f-muffler.oembed","provider":"Westfield Moto Works","version":"1.0","type":"link"}