fmf

The Shorty Silencer is the most desirable silencer for supercross performanceOverall length of canister and core is shorter to improve the hit of y...

The Shorty Silencer is the most desirable silencer for supercross performanceOverall length of canister and core is shorter to improve the hit of y...

The most popular 2-stroke silencers in FMF's arsenalThe elliptically shaped bodies with perforated core perform well in any conditionEquipped with ...

FMF developed the PowerCore 4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is...

Utilize FMF's patented module precisely located at the initial stage of the headerPosition "Bomb" increases performance; horsepower is increased as...

The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams and it shares many of the same characteristics with its’ cr...

Computer designed and dyno tested to make power gains where each machine needs them the mostTru-Flo stamping process ensures a perfect fit and opti...

The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrainWhen looking to add 4-stroke tr...

Replace muffler decals that are peeling offMade in the U.S.A.

Replacement rear cone cap

Replacement 4-Stroke Exhaust Spark Arrestor Screen Insert

Replacement 4-Stroke Exhaust Quiet Insert

Replacement universal heat shield for FMF head pipes

Utilize FMF's patented module precisely located at the initial stage of the headerPosition "Bomb" increases performance; horsepower is increased as...

Replacement 4-Stroke Exhaust Spark Arrestor Screen Insert

Built to provide excellent power for today’s tracks geared toward 4-stroke machinesSmooth power curve throughout the RPM rangeLarge diameter canist...

The 2.1 utilizes a shape inspired by the 4.1 systemUtilizes exclusive FMF "Turbine Dampening System"U.S. Forest Service legal statusThe straight th...

Produces long header torque and short header over-revReduces sound output as much as 1.5dBIncreases output from stock motor as much as 3hpMade from...

Overall increase in power and torqueDurable stainless steel and aluminum constructionAdvanced packing material for maximum longevityRemovable spark...

Developed over years of championship off-road racingMax Sound output 96dBConstructed from aircraft grade aluminum and high strength stainless steel...

Count down the laps with FMFLarge dry erase surface on one side, large FMF logo on the other

Removeable nose guard deflects roost and debrisDual-pane polycarbonate lens for ultimate fog preventionTriple layer moisture managing face foam soa...

Built with 45 mm wide field of visionSelf-cleaning canister with integrated film wipe reduces mud build upSmooth rolling drawstring for easy pullin...

Includes 100% Forecast Film system with 45 mm wide field of visionRemoveable nose guard deflects roost and debrisAnti-fog coated polycarbonate lens...