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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Fmf - 025239 - Factory Fatty Pipe
FMF
$299.99Fmf - 18201866 - 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 - 025256 - Turbinecore 2.1 Muffler
FMF
$269.99Fmf - 18211917 - Turbinecore 2.1 MufflerFeaturesThe 2.1 utilizes a shape inspired by the 4.1 systemUtilizes exclusive FMF "Turbine Dampening System"U.S. Forest Service legal...$269.99 -
Fmf - 025253 - Powercore 2.1 Shorty Muffler
FMF
$239.99Fmf - 18211914 - 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 - 025247 - Powercore 2.1 Muffler - Aluminum
FMF
$239.99Fmf - 18211909 - Powercore 2.1 Muffler - AluminumFeaturesSmooth power curve throughout the RPM rangeLarge diameter canister for more tenability and longer lasting packing lifeDelivers a crisp,...$239.99 -
Fmf - 045638 - 4.1 RCT Exhaust with MegaBomb - Aluminum
FMF
$1,049.99Fmf - 18201875 - 4.1 RCT Exhaust with MegaBomb - AluminumFeaturesShorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the...$1,049.99 -
Fmf - 025241 - Fatty Pipe
FMF
$299.99Fmf - 18201868 - Fatty PipeFeaturesThe Fatty broadens and smooths out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-revNo matter...$299.99 -
Fmf - 025240 - Factory Fatty Rev Pipe
FMF
$299.99Fmf - 18201867 - Factory Fatty Rev PipeFeaturesIf you're running out of power up top, want more time between shifts and do a lot of deep berm or sand riding, the FMF Rev is your pipe of choiceFMF...$299.99 -
Fmf - 025238 - Fatty Pipe
FMF
$299.99Fmf - 18201865 - Fatty PipeFeaturesThe Fatty broadens and smooths out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-revNo matter...$299.99 -
Fmf - 024073 - Factory Fatty Pipe
FMF
$299.99Fmf - 18201851 - 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 - 044457 - 4.1 RCT Exhaust with MegaBomb - Anodized Titanium
FMF
$1,374.99Fmf - 18201841 - 4.1 RCT Exhaust with MegaBomb - Anodized TitaniumFeaturesShorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering -...$1,374.99 -
Out of stock
Fmf - 024072 - Fatty Pipe
FMF
$299.99Fmf - 18201850 - Fatty PipeFeaturesThe Fatty broadens and smooths out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-revNo matter...$299.99 -
Fmf - 045626 - PowerCore 4 HEX Muffler
FMF
$549.99Fmf - 18211918 - PowerCore 4 HEX MufflerFeaturesDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInternal shape of core uses Hi-Flo...$549.99 -
Fmf - 025254 - Powercore 2.1 Muffler - Titanium
FMF
$449.99Fmf - 18211915 - Powercore 2.1 Muffler - TitaniumFeaturesSmooth power curve throughout the RPM rangeLarge diameter canister for more tenability and longer lasting packing lifeDelivers a crisp,...$449.99 -
Fmf - 025252 - Powercore 2.1 Muffler - Aluminum
FMF
$239.99Fmf - 18211913 - Powercore 2.1 Muffler - AluminumFeaturesSmooth power curve throughout the RPM rangeLarge diameter canister for more tenability and longer lasting packing lifeDelivers a crisp,...$239.99 -
Fmf - 042369 - Factory 4.1 RCT Muffler - Aluminum
FMF
$599.99Fmf - 18211888 - 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 - 044453 - Factory 4.1 RCT Muffler - Aluminum
FMF
$649.99Fmf - 18211883 - 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...$649.99 -
Fmf - 044426 - Q4 HEX Muffler
FMF
$449.99Fmf - 18211609 - 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...$449.99 -
Fmf - 044423 - PowerCore 4 HEX Muffler
FMF
$399.99Fmf - 18211606 - 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 - 044427 - Factory 4.1 RCT Muffler - Aluminum
FMF
$674.99Fmf - 18211610 - 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...$674.99 -
Fmf - 045624 - MegaBomb Header
FMF
$374.99Fmf - 18220484 - 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 - 041517 - Factory 4.1 RCT Muffler - Aluminum
FMF
$599.99Fmf - 18211563 - 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 - 044398 - Q4 HEX Muffler
FMF
$449.99Fmf - 18211544 - 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...$449.99 -
Fmf - 014815 - Pipe Spring/O-Rings Kit
FMF
$11.99Fmf - 18600818 - Pipe Spring/O-Rings KitFeaturesSpecsMaterialRubberProduct NameO-RingTypeExhaustUnitsKitMaterialSteelRiding StyleOff-RoadFitment2005-2007KawasakiKX250$11.99 -
Fmf - 025226 - Powercore 2 Silencer - Big Bore
FMF
$199.99Fmf - 18211833 - Powercore 2 Silencer - Big BoreFeaturesThe elliptically shaped bodies with perforated core perform well in any conditionEquipped with a Performance Flow end cap and nickel-plated...$199.99 -
Fmf - 025218 - Gnarly Pipe
FMF
$299.99Fmf - 18201790 - 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 - 044439 - MegaBomb Header - Stainless Steel
FMF
$424.99Fmf - 18220468 - MegaBomb Header - Stainless SteelFeaturesImproved 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...$424.99 -
Fmf - 025227 - Turbinecore 2 Silencer
FMF
$219.99Fmf - 18211834 - 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 - 040681 - 4.1 RCT Spark Arrestor Insert
FMF
$39.99Fmf - 18601372 - 4.1 RCT Spark Arrestor InsertFeaturesSpecsProduct NameInsertRiding StyleOff-RoadTypeSpark ArrestorUnitsEachModelFactory 4.1 RCTFitment2014-2017YamahaYZ250F2014-2017YamahaYZ450F$39.99 -
Fmf - 044443 - Factory 4.1 RCT Muffler - Aluminum
FMF
$649.99Fmf - 18211838 - 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...$649.99 -
Fmf - 025225 - Powercore 2 Shorty Silencer
FMF
$199.99Fmf - 18211832 - Powercore 2 Shorty SilencerFeaturesOverall length of canister and core is shorter to improve the hit of your machineThe SST Shorty Silencer is the heart and soul of the SST power...$199.99 -
Fmf - 025222 - Factory Fatty Pipe
FMF
$299.99Fmf - 18201793 - 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 - 044442 - Q4 HEX Muffler
FMF
$449.99Fmf - 18211837 - 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...$449.99 -
Out of stock
Fmf - 045639 - 4.1 RCT Exhaust with MegaBomb - Anodized Titanium
FMF
$1,329.99Fmf - 18201876 - 4.1 RCT Exhaust with MegaBomb - Anodized TitaniumFeaturesShorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering -...$1,329.99 -
Fmf - 025220 - Turbinecore 2.1 Muffler
FMF
$269.99Fmf - 18211831 - Turbinecore 2.1 MufflerFeaturesThe 2.1 utilizes a shape inspired by the 4.1 systemUtilizes exclusive FMF "Turbine Dampening System"U.S. Forest Service legal statusSpecsStyleRoundEnd...$269.99 -
Out of stock
Fmf - 045637 - 4.1 RCT Exhaust with MegaBomb - Anodized Titanium
FMF
$1,329.99Fmf - 18201874 - 4.1 RCT Exhaust with MegaBomb - Anodized TitaniumFeaturesShorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering -...$1,329.99 -
Fmf - 025242 - Gnarly Pipe
FMF
$299.99Fmf - 18201869 - Gnarly PipeFeaturesAn excellent off-road pipe, and a winner for tighter tracksBuilt with tough 18-gauge steelSpecsModelGnarlyColor/FinishNickel-PlatedTypeExhaustProduct...$299.99 -
Fmf - 044456 - 4.1 RCT Exhaust with MegaBomb - Aluminum
FMF
$1,074.99Fmf - 18201840 - 4.1 RCT Exhaust with MegaBomb - AluminumFeaturesShorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the...$1,074.99 -
Fmf - 025095 - Gnarly Pipe
FMF
$299.99Fmf - 18200755 - 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 - 045633 - Factory 4.1 RCT Muffler - Anodized Titanium
FMF
$854.99Fmf - 18211925 - 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...$854.99 -
Fmf - 045629 - Factory 4.1 RCT Muffler - Anodized Titanium
FMF
$854.99Fmf - 18211921 - 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...$854.99
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.