FMF
FMF Racing is a globally respected performance brand specializing in high-output motorcycle exhaust systems and race-developed components. With deep roots in motocross, off-road and competitive riding, FMF exhausts are engineered to increase horsepower, sharpen throttle response and deliver a signature aggressive sound. Riders trust FMF for race-proven durability, lightweight construction and consistent real-world performance gains. The FMF name is synonymous with competition, innovation and uncompromising exhaust technology.
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Fmf - 041118 - PowerBomb Header - Fits 2004-2005 Honda CRF250R
FMF
$249.99Fmf - 18220036 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$249.99 -
Fmf - 023060 - Gnarly Pipe
FMF
$299.99Fmf - 18200169 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$299.99 -
Fmf - 021044 - Fatty Pipe - Fits 2005-2007 Honda CR85R
FMF
$299.99Fmf - 18200160 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated finishSpecsModelGold Series...$299.99 -
Fmf - 024049 - Fatty Pipe - Fits 1998-2013 Kawasaki KX100
FMF
$319.99Fmf - 18200132 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated finishSpecsProduct NameHead...$319.99 -
Out of stock
Fmf - 044195 - Q4 Muffler - Fits Yamaha 2003-2006 WR250F, 2003-2005 YZ250F
FMF
$449.99Fmf - 18210676 - Q4 MufflerFeaturesLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage core...$449.99 -
Fmf - 025070 - Gnarly Pipe - Fits 2003-2006 Gas Gas 300, 2004-2010 Honda 300
FMF
$329.99Fmf - 18200081 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$329.99 -
Out of stock
Fmf - 024041 - Fatty Pipe
FMF
$319.99Fmf - 18200027 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated...$319.99 -
Out of stock
Fmf - 021041 - Gnarly Pipe - Fits 2003-2004 Honda CR250R
FMF
$299.99Fmf - 18200007 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$299.99 -
Out of stock
Fmf - 041291 - Factory 4.1 Muffler - Anodized Titanium - Fits 2007-2026 Honda CRF150R
FMF
$499.99Fmf - 18210547 - Factory 4.1 Muffler - Anodized TitaniumFeaturesFactory Forward Engineering centralizes mass, improves handlingCustomize with performance tuning inserts and spark arrestor...$499.99 -
Fmf - 041249 - Q4 Muffler - Fits Honda 2004-2005 CRF250R, 2004-2009 CRF250X
FMF
$499.99Fmf - 18210653 - Q4 MufflerFeaturesLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage core...$499.99 -
Fmf - 044232 - Q4 Muffler - Fits Yamaha 2007-2013 WR250F, 2006-2009 YZ250F, 2007-2013 WR450F, 2007-2011 WR450F, 2006-2009 YZ450F
FMF
$499.99Fmf - 18210581 - Q4 MufflerFeaturesLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage core...$499.99 -
Fmf - 041273 - Powercore 4 Muffler - Fits 2004-2009 Honda CRF250X
FMF
$449.99Fmf - 18210662 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecsEnd...$449.99 -
Out of stock
Fmf - 042123 - Powercore 4 Muffler - Fits 2006-2008 Kawasaki KX450F
FMF
$449.99Fmf - 18210672 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strengthRemovable spark arrestor...$449.99 -
Fmf - 041287 - Q4 Muffler - Fits 2007-2024 Honda CRF150R
FMF
$499.99Fmf - 18210543 - Q4 MufflerFeaturesLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage core...$499.99 -
Fmf - 043095 - Powercore 4 Muffler
FMF
$269.99Fmf - 18210521 - Powercore 4 MufflerFeaturesFeatures a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel headerPounds lighter than...$269.99 -
Out of stock
Fmf - 025077 - Powercore 2 Silencer - Fits KTM 2004-2010 125 SX, 2009-2010 150 SX
FMF
$199.99Fmf - 18210080 - Powercore 2 SilencerFeaturesThe elliptically shaped bodies with perforated core perform well in any conditionEquipped with a Performance Flow end cap and nickel-plated front...$199.99 -
Fmf - 025131 - Gnarly Pipe - Fits 2001-2002 KTM 3 250 EXC/SX, 1992-1996 Honda CR250R, 2011-2016 Husqvarna TE 250/300
FMF
$329.99Fmf - 18201112 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$329.99 -
Out of stock
Fmf - 041071 - Powercore 4 Exhaust
FMF
$299.99Fmf - 18201342 - Powercore 4 ExhaustFeaturesComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...$299.99 -
Fmf - 040642 - Replacement End Cap Kit - Titanium - RCT
FMF
$59.99Fmf - 18600562 - Replacement End Cap Kit - Titanium - RCTFeaturesSpecsMaterialTitaniumModelFactory 4.1 RCTRiding StyleOff-RoadEnd Cap StyleEuroProduct NameEnd CapUnitsKitTypeExhaustOutside Diameter...$59.99 -
Out of stock
Fmf - 025067 - Turbinecore 2 Silencer - Fits 2002-2007 Honda CR250R, 2007-2012 KTM 105 SX/XC
FMF
$219.99Fmf - 18210024 - Turbinecore 2 SilencerFeaturesStraight-through design of the spark arrestor canister and the Performance Flow stainless steel end cap ensure strength, durability and unrestricted...$219.99 -
Fmf - 025090 - Factory Fatty Pipe
FMF
$299.99Fmf - 18200496 - Factory Fatty PipeFeaturesBroadens and smooths out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-revNo matter what...$299.99 -
Fmf - 025087 - Gnarly Pipe
FMF
$329.99Fmf - 18200417 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$329.99 -
Fmf - 041178 - Powercore 4 Exhaust
FMF
$279.99Fmf - 18200252 - Powercore 4 ExhaustFeaturesComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...$279.99 -
Out of stock
Fmf - 021053 - Gnarly Pipe - Fits 2005-2007 Honda CR250R
FMF
$299.99Fmf - 18200215 - Gnarly PipeFeaturesWhen looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe for youStrong and rugged,...$299.99 -
Fmf - 043309 - MegaBomb Header
FMF
$374.99Fmf - 18220380 - MegaBomb HeaderFeaturesImproved bottom to mid-range powerProduce the low end of a longer header and the top end of a short headerLess susceptible to damage than a long headerRuns...$374.99 -
Fmf - 011315 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011315 - Pipe Spring/O-Rings KitFeaturesSpecsUnitsKitMaterialRubberProduct NameO-RingMaterialSteelRiding StyleOff-RoadTypeExhaustFitment1989-1998YamahaYZ125$12.99 -
Fmf - 011314 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011314 - Pipe Spring/O-Rings KitFeaturesSpecsMaterialSteelRiding StyleOff-RoadMaterialRubberUnitsKitProduct NameO-RingTypeExhaustFitment1994-2008SuzukiRM250$12.99 -
Out of stock
Fmf - 011312 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011312 - Pipe Spring/O-Rings KitFeaturesSpecsMaterialSteelRiding StyleOff-RoadMaterialRubberUnitsKitProduct NameO-RingTypeExhaustFitment1988-2004KawasakiKX2501988-2004KawasakiKX500$12.99 -
Fmf - 011310 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011310 - Pipe Spring/O-Rings KitFeaturesSpecsTypeExhaustMaterialSteelProduct NameO-RingRiding StyleOff-RoadMaterialRubberUnitsKitFitment2022, 2025KawasakiKX1121998-2009,...$12.99 -
Out of stock
Fmf - 011308 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011308 - Pipe Spring/O-Rings KitFeaturesSpecsTypeExhaustRiding StyleOff-RoadMaterialSteelProduct NameO-RingMaterialRubberUnitsKitFitment1989-2001HondaCR500R$12.99 -
Fmf - 020147 - Fatty Pipe
FMF
$309.99Fmf - FMFY46 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated...$309.99 -
Out of stock
Fmf - 020142 - Fatty Pipe
FMF
$309.99Fmf - FMFY36 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated finishSpecsRiding...$309.99 -
Fmf - 020135 - Fatty Pipe
FMF
$339.99Fmf - FMFY23 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated...$339.99 -
Fmf - 020137 - Fatty Pipe
FMF
$339.99Fmf - FMFY28 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated finishSpecsModelGold Series...$339.99 -
Out of stock
Fmf - 020133 - Fatty Pipe
FMF
$349.99Fmf - FMFY21 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated...$349.99 -
Fmf - 043289 - PowerBomb Header - Fits 1997-2023 Suzuki DR650SE
FMF
$249.99Fmf - 18220316 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$249.99 -
Out of stock
Fmf - 020127 - Fatty Pipe
FMF
$309.99Fmf - FMFY09 - Fatty PipeFeaturesTru-Flo stamping process ensures a perfect fit and optimum performanceConstructed of strong 19-gauge steel with a nickel-plated...$309.99 -
Fmf - 020370 - Turbinecore 2 Silencer
FMF
$219.99Fmf - FMFSA9201 - Turbinecore 2 SilencerFeaturesStraight-through design of the spark arrestor canister and the Performance Flow stainless steel end cap ensure strength, durability and unrestricted...$219.99 -
Out of stock
Fmf - 020362 - Turbinecore 2 Silencer
FMF
$219.99Fmf - FMFSA8207 - Turbinecore 2 SilencerFeaturesStraight-through design of the spark arrestor canister and the Performance Flow stainless steel end cap ensure strength, durability and unrestricted...$219.99 -
Fmf - 020361 - Turbinecore 2 Silencer
FMF
$229.99Fmf - FMFSA8206 - Turbinecore 2 SilencerFeaturesStraight-through design of the spark arrestor canister and the Performance Flow stainless steel end cap ensure strength, durability and unrestricted...$229.99
FMF – High-Performance Exhaust Systems and Racing Components
FMF Racing has built its legacy through decades of direct involvement in professional motocross, supercross, desert racing and off-road competition. Every FMF exhaust system is developed using extensive dyno testing, track feedback and real-world race data to extract maximum performance from modern and classic motorcycle engines. This race-first approach allows FMF to deliver exhaust solutions that improve airflow efficiency, engine response and overall power delivery without sacrificing reliability.
FMF motorcycle exhaust pipes, headers and mufflers are engineered to increase torque and horsepower across usable RPM ranges while reducing overall system weight. Tuned silencer designs, precision-welded headers and lightweight materials help riders achieve stronger acceleration, improved throttle control and a more responsive riding experience. FMF also supports long-term performance with exhaust repack kits, replacement components and accessories designed to maintain optimal sound control and efficiency.
Trusted by factory race teams, professional riders and serious enthusiasts worldwide, FMF continues to set the benchmark in motorcycle exhaust performance. Whether upgrading a trail bike, motocross machine or off-road racer, FMF exhaust systems deliver proven power gains, aggressive sound and the durability required for hard riding. For riders who demand performance backed by racing heritage, FMF remains a top-tier exhaust solution.