
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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Out of stock
Fmf - FMF020461 - Replacement Rear Cone - 1.0" - Powercore 2
FMF
$39.99Fmf - FMF020461 - Replacement Rear Cone - 1.0" - Powercore 2FeaturesSpecsRiding StyleATV$39.99 -
Fmf - FMF040197 - Medium Strap - without O-Rings - PCore 4
FMF
$16.99Fmf - FMF040197 - Medium Strap - without O-Rings - PCore 4FeaturesNot for minisSpecsSizeMedium$16.99 -
Fmf - FMF023038 - Powercore 2 Silencer
FMF
$199.99Fmf - FMF023038 - 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 - FMFSA6206 - Turbinecore 2 Muffler
FMF
$229.99Fmf - FMFSA6206 - Turbinecore 2 MufflerFeaturesThis top-notch product has well earned its U.S. Forest legal statusThe straight through design of the spark arrestor canister and the performance flow...$229.99 -
Fmf - FMF8205 - Powercore 2 Silencer
FMF
$379.99Fmf - FMF8205 - Powercore 2 SilencerFeaturesThe elliptically shaped bodies with perforated core perform well in any conditionEquipped with a Performance Flow end cap and nickel-plated front...$379.99 -
Out of stock
Fmf - FMF020464 - Replacement Rear Cone - 1-1/4" - Turbinecore 2
FMF
$39.99Fmf - FMF020464 - Replacement Rear Cone - 1-1/4" - Turbinecore 2FeaturesSpecsOutlet Diameter Imperial1.250''$39.99 -
Out of stock
Fmf - FMFSA8205 - Turbinecore 2 Muffler
FMF
$459.99Fmf - FMFSA8205 - Turbinecore 2 MufflerFeaturesThis top-notch product has well earned its U.S. Forest legal statusThe straight through design of the spark arrestor canister and the performance flow...$459.99 -
Out of stock
Fmf - FMFH421H - PowerBomb Header
FMF
$324.99Fmf - FMFH421H - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$324.99 -
Fmf - FMFY44 - Fatty Pipe - '87-'06 Banshee
FMF
$589.99Fmf - FMFY44 - Fatty Pipe - '87-'06 BansheeFeaturesImproved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that everyone will benefit fromIf you’re riding trails,...$589.99 -
Out of stock
Fmf - FMFH42 - Fatty Pipe - '87-'89 TRX250R
FMF
$379.99Fmf - FMFH42 - Fatty Pipe - '87-'89 TRX250RFeaturesImproved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that everyone will benefit fromIf you’re riding trails,...$379.99 -
Fmf - FMF023037 - Fatty Pipe - KFX/LT80
FMF
$299.99Fmf - FMF023037 - Fatty Pipe - KFX/LT80FeaturesImproved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that everyone will benefit fromIf you’re riding trails, tracks...$299.99 -
Out of stock
Fmf - FMF011307 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011307 - Pipe Spring/O-Rings KitFeaturesSpecsTypeExhaustUnits<$12.99 -
Fmf - FMF020465 - Replacement Rear Cone - 1-3/8" - Turbinecore 2
FMF
$39.99Fmf - FMF020465 - Replacement Rear Cone - 1-3/8" - Turbinecore 2FeaturesSpecsColor/FinishStainless Steel$39.99 -
Fmf - 18600584 - Muffler Sleeve - Aluminum - Fits Honda 1999-2008 TRX400EX, 2009-2010 TRX400X, 2004-2014 TRX450R, 1996-2004 XR400R
FMF
$19.99Fmf - 18600584 - Muffler Sleeve - AluminumFeaturesSpecsTypeMid Pipe Inlet Sleeve$19.99 -
Fmf - 18600582 - Muffler Sleeve - Aluminum - Fits Yamaha 2006-2011 YZ250F, 2006-2009 YZ450F
FMF
$19.99Fmf - 18600582 - Muffler Sleeve - AluminumFeaturesSpecsMaterialAluminum$19.99 -
Out of stock
Fmf - FMF011385 - Pipe Spring/O-Rings Kit
FMF
$12.99Fmf - FMF011385 - Pipe Spring/O-Rings KitFeaturesSpecsProduct NameO-Ring$12.99 -
Out of stock
Fmf - FMFY37 - Fatty Pipe - '88-'06 Blaster
FMF
$349.99Fmf - FMFY37 - Fatty Pipe - '88-'06 BlasterFeaturesImproved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that everyone will benefit fromIf you’re riding trails,...$349.99 -
Fmf - FMFH12 - Fatty Pipe - '85-'86 ATC250R
FMF
$339.99Fmf - FMFH12 - Fatty Pipe - '85-'86 ATC250RFeaturesImproved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that everyone will benefit fromIf you’re riding trails,...$339.99 -
Fmf - FMF022037 - Powercore 2 Silencer
FMF
$199.99Fmf - FMF022037 - 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 - FMF12002 - Muffler Packing - 2-Stroke
FMF
$10.99Fmf - FMF12002 - Muffler Packing - 2-StrokeFeaturesSpecsRiding StyleOff-Road$10.99 -
Out of stock
Fmf - 18310648 - Q4 HEX Muffler - Fits 2006-2023 Yamaha YFM700 Raptor
FMF
$499.99Fmf - 18310648 - Q4 HEX MufflerFeaturesWith the Q4 you don’t need to hear the power, just feel the power!Less sound equals more groundPower gains throughout the entire rpm rangeSpark arrestor...$499.99 -
Fmf - FMF044033 - PowerBomb Header
FMF
$249.99Fmf - FMF044033 - 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 - FMF040196 - Short Strap - without O-Rings - PCore 4
FMF
$16.99Fmf - FMF040196 - Short Strap - without O-Rings - PCore 4FeaturesNot for minisSpecsMaterialStainless Ste$16.99 -
Fmf - 18310610 - Factory 4.1 RCT Muffler - Anodized Titanium
FMF
$674.99Fmf - 18310610 - Factory 4.1 RCT Muffler - Anodized TitaniumFeaturesIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory...$674.99 -
Fmf - 18310678 - Factory 4.1 RCT Muffler - Anodized Titanium - Fits 2004-2014 Honda TRX450R
FMF
$674.99Fmf - 18310678 - Factory 4.1 RCT Muffler - Anodized TitaniumFeaturesIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory...$674.99 -
Out of stock
Fmf - 18310478 - Powercore 4 Muffler - Fits 2003-2014 Suzuki LT-Z400 QuadSport
FMF
$449.99Fmf - 18310478 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecs$449.99 -
Fmf - 18310675 - Powercore 4 Exhaust - Fits 2004-2014 Honda TRX450R
FMF
$449.99Fmf - 18310675 - Powercore 4 ExhaustFeaturesAluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecs$449.99 -
Fmf - 18310518 - Q4 Muffler - Fits Yamaha 2009-2022 YFZ450R, 2010-2011 YFZ450X
FMF
$499.99Fmf - 18310518 - Q4 MufflerFeaturesTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb headerSpecs$499.99 -
Out of stock
Fmf - 18310402 - Powercore 4 Muffler - Fits 2011 Yamaha Raptor
FMF
$449.99Fmf - 18310402 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecs$449.99 -
Fmf - 18310365 - Powercore 4 Muffler
FMF
$449.99Fmf - 18310365 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecs$449.99 -
Out of stock
Fmf - 18310339 - Powercore 4 Muffler - Fits Honda 2001-2008 TRX250EX Sportrax, 2009-2014 TRX250X
FMF
$449.99Fmf - 18310339 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecs$449.99 -
Fmf - 18300410 - 4.1 Exhaust with Megabomb Header - Fits Yamaha 2009-2022 YFZ450R, 2010-2011 YFZ450X
FMF
$1,049.99Fmf - 18300410 - 4.1 Exhaust with Megabomb HeaderFeaturesSuperior power and performance - horsepower improved throughout the rpm rangeFactory forward engineering centralizes mass, improves...$1,049.99 -
Fmf - 18310358 - Q4 Muffler - Fits 2004-2009 Yamaha YFZ450
FMF
$499.99Fmf - 18310358 - Q4 MufflerFeaturesTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb headerSpecs$499.99 -
Out of stock
Fmf - 18320038 - PowerBomb Header - Fits 2006-2014 Yamaha YFM700 Raptor
FMF
$324.99Fmf - 18320038 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$324.99 -
Fmf - 18320079 - PowerBomb Header
FMF
$324.99Fmf - 18320079 - PowerBomb HeaderFeaturesPosition "Bomb" increases performance; horsepower is increased as much as 10%Act as "pre-muffler" helping to lower the decibel outputThe expansion and...$324.99 -
Fmf - 18320070 - PowerBomb Header - Fits 2004-2009 Yamaha 3 YFZ450
FMF
$249.99Fmf - 18320070 - 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 - 18320039 - PowerBomb Header - Fits 2006-2009 Honda TRX450R
FMF
$249.99Fmf - 18320039 - 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 - 18310676 - Q4 HEX Muffler - Fits 2004-2014 Honda TRX450R
FMF
$499.99Fmf - 18310676 - Q4 HEX MufflerFeaturesWith the Q4 you don’t need to hear the power, just feel the power!Less sound equals more groundPower gains throughout the entire rpm rangeSpark arrestor...$499.99 -
Out of stock
Fmf - 18310647 - PowerCore 4 HEX Muffler - Fits 2006-2023 Yamaha YFM700 Raptor
FMF
$449.99Fmf - 18310647 - PowerCore 4 HEX MufflerFeaturesDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInternal shape of core uses Hi-Flo...$449.99 -
Fmf - 18310517 - Powercore 4 Muffler - Fits Yamaha 2009-2022 YFZ450R, 2010-2011 YFZ450X
FMF
$449.99Fmf - 18310517 - Powercore 4 MufflerFeaturesAluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strengthRemovable spark arrestor includedSpecs$449.99
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.