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 - 042397 - Factory 4.1 RCT Exhaust - Aluminum
FMF
$974.99Fmf - 18201985 - Factory 4.1 RCT Exhaust - AluminumFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the...$974.99 -
Fmf - 042398 - Factory 4.1 RCT Exhaust - Titanium
FMF
$1,224.99Fmf - 18201984 - Factory 4.1 RCT Exhaust - TitaniumFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the...$1,224.99 -
Fmf - 025213 - Powercore 2.1 Shorty Muffler
FMF
$239.99Fmf - 18211816 - Powercore 2.1 Shorty MufflerFeaturesWith their lightweight titanium or extruded aluminum oval canisters mated to a perforated core, these silencers are above the...$239.99 -
Fmf - 042384 - MegaBomb Header
FMF
$374.99Fmf - 18220524 - 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 - 025280 - Gnarly™ Exhaust Pipe
FMF
$299.99Fmf - 18202015 - Gnarly™ Exhaust PipeFeaturesExcellent off-road pipe and good for tighter tracksBuilt with tough 18-gauge steelO-rings IncludedSpecsMaterialSteelModelGnarlyRiding...$299.99 -
Fmf - 024078 - Exhaust Factory Fatty Rev Pipe
FMF
$299.99Fmf - 18202014 - Exhaust Factory Fatty Rev PipeFeaturesDyno and track tested for every applicationO-rings includedSpecsProduct NameFatty PipeRiding StyleOff-RoadModelFactory Fatty...$299.99 -
Out of stock
Fmf - 024071 - Turbinecore 2 Silencer
FMF
$219.99Fmf - 18211875 - 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 - 041605 - Factory 4.1 RCT Exhaust - Titanium
FMF
$1,374.99Fmf - 18201994 - Factory 4.1 RCT Exhaust - TitaniumFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the...$1,374.99 -
Fmf - 042391 - MegaBomb Header
FMF
$474.99Fmf - 18220522 - 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...$474.99 -
Out of stock
Fmf - 042390 - MegaBomb Header
FMF
$374.99Fmf - 18220521 - 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 - 044450 - MegaBomb Header
FMF
$524.99Fmf - 18220476 - 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...$524.99 -
Fmf - 041613 - 4.1 RCT Exhaust System
FMF
$1,374.99Fmf - 18202003 - 4.1 RCT Exhaust SystemFeaturesIn addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving...$1,374.99 -
Fmf - 043372 - Factory 4.1 RCT Muffler - Aluminum
FMF
$599.99Fmf - 18211958 - Factory 4.1 RCT Muffler - AluminumFeaturesIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward...$599.99 -
Out of stock
Fmf - 043362 - PowerCore 4 HEX Muffler
FMF
$399.99Fmf - 18211855 - PowerCore 4 HEX MufflerFeaturesDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInternal shape of core uses Hi-Flo...$399.99 -
Out of stock
Fmf - 043368 - MegaBomb Header
FMF
$374.99Fmf - 18220492 - 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 - 024076 - Exhaust Fatty Pipe
FMF
$299.99Fmf - 18202012 - Exhaust Fatty PipeFeaturesCarbon steel with a nickel plated finish for maximum durabilityO-rings IncludedSpecsColor/FinishNickel-PlatedMaterialCarbon SteelUnitsEachProduct NameFatty...$299.99 -
Fmf - 042394 - Factory 4.1 Muffler
FMF
$599.99Fmf - 18212035 - Factory 4.1 MufflerFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range...$599.99 -
Fmf - 042374 - Factory 4.1 RCT Muffler - Aluminum
FMF
$599.99Fmf - 18211953 - Factory 4.1 RCT Muffler - AluminumFeaturesIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward...$599.99 -
Fmf - 041603 - Factory 4.1 Muffler
FMF
$899.99Fmf - 18212044 - Factory 4.1 MufflerFeaturesSuperior power and performance - horsepower improved throughout the rpm rangeFeature exclusive proprietary Chamber Core technologyFactory Forward...$899.99 -
Fmf - 043380 - Q4 Hex Slip-On Muffler
FMF
$449.99Fmf - 18212045 - Q4 Hex Slip-On MufflerFeaturesMeets FIM World Enduro sound regulationsPower gains throughout the entire rpm rangeSpark arrestor includedPounds lighter than stockRugged design for...$449.99 -
Fmf - 043379 - Powercore 4 Muffler
FMF
$399.99Fmf - 18212040 - Powercore 4 MufflerFeaturesComputer-designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...$399.99 -
Fmf - 042396 - Factory 4.1 Muffler
FMF
$749.99Fmf - 18212036 - Factory 4.1 MufflerFeaturesInternal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range...$749.99 -
Fmf - 041602 - Factory 4.1 Muffler
FMF
$674.99Fmf - 18212043 - Factory 4.1 MufflerFeaturesSuperior power and performance - horsepower improved throughout the rpm rangeFeature exclusive proprietary Chamber Core technologyFactory Forward...$674.99 -
Fmf - 041601 - Q4 Hex Slip-On Muffler
FMF
$449.99Fmf - 18212042 - Q4 Hex Slip-On MufflerFeaturesMeets FIM World Enduro sound regulationsPower gains throughout the entire rpm rangeSpark arrestor includedPounds lighter than stockRugged design for...$449.99 -
Fmf - 042392 - Powercore 4 Muffler
FMF
$399.99Fmf - 18212038 - Powercore 4 MufflerFeaturesComputer-designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...$399.99 -
Fmf - 041600 - Powercore 4 Muffler
FMF
$399.99Fmf - 18212041 - Powercore 4 MufflerFeaturesComputer-designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...$399.99 -
Fmf - 042393 - Q4 Hex Slip-On Muffler
FMF
$449.99Fmf - 18212039 - Q4 Hex Slip-On MufflerFeaturesMeets FIM World Enduro sound regulationsPower gains throughout the entire rpm rangeSpark arrestor includedPounds lighter than stockRugged design for...$449.99 -
Fmf - 024069 - Factory Fatty Pipe
FMF
$289.99Fmf - 18201828 - 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...$289.99 -
Out of stock
Fmf - 024070 - Powercore 2 Silencer
FMF
$199.99Fmf - 18211874 - 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 -
Out of stock
Fmf - 041608 - Powercore 4 Hex Muffler
FMF
$399.99Fmf - 18212050 - Powercore 4 Hex MufflerFeaturesInternal shape of core use Hi-Flo technologyIncludes removable spark arrestorSpecsColor/FinishNaturalEnd Cap MaterialStainless...$399.99 -
Fmf - 044449 - MegaBomb Header
FMF
$424.99Fmf - 18220475 - 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...$424.99 -
Fmf - 025281 - Powercore 2 Muffler
FMF
$199.99Fmf - 18212063 - Powercore 2 MufflerFeaturesLightweight extruded aluminum oval canister mated to a perforated coreSpecsPipe MaterialStainless SteelTypeSilencerEnd Cap MaterialStainless SteelEnd Cap...$199.99 -
Out of stock
Fmf - 043370 - PowerCore 4 HEX Muffler
FMF
$399.99Fmf - 18211956 - PowerCore 4 HEX MufflerFeaturesDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInternal shape of core uses Hi-Flo...$399.99 -
Fmf - 040692 - Heat Shield - MegaBomb - Titanium
FMF
$89.99Fmf - 18611643 - Heat Shield - MegaBomb - TitaniumFeaturesComes with clamp for easy installSpecsStyleUniversalMaterialTitaniumModelMegaBombProduct NameHeat ShieldRiding StyleOff-RoadUnitsEach$89.99 -
Fmf - 043369 - MegaBomb Header
FMF
$474.99Fmf - 18220493 - 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...$474.99 -
Fmf - 025284 - Turbinecore 2.1 Muffler
FMF
$269.99Fmf - 18212066 - Turbinecore 2.1 MufflerFeaturesEngineered to assault today's tracks and trailsLarger diameter titanium canister for more tunability and longer lasting packing lifePounds Lighter than...$269.99 -
Fmf - 042379 - MegaBomb Header
FMF
$474.99Fmf - 18220491 - 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...$474.99 -
Fmf - 024081 - Turbinecore 2 Muffler
FMF
$219.99Fmf - 18212057 - Turbinecore 2 MufflerFeaturesSpecsMaterialAluminumUnitsEachPipe MaterialStainless SteelRiding StyleOff-RoadEnd Cap StyleConicalTypeSilencerColor/FinishNaturalModelTurbineCore...$219.99 -
Fmf - 024080 - Powercore 2 Shorty Muffler
FMF
$199.99Fmf - 18212056 - Powercore 2 Shorty MufflerFeaturesAn excellent choice for tight tracks and supercross track applicationsSpecsEnd Cap StyleSlash-CutModelPowercore 2 ShortyProduct NameMufflerEnd Cap...$199.99 -
Fmf - 025283 - Powercore 2.1 Muffler
FMF
$239.99Fmf - 18212065 - Powercore 2.1 MufflerFeaturesLarger diameter canister for more tunability and longer lasting packing lifeLighter than stockOptimally designed to complement performance of FMF pipes;...$239.99
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.