FMF

Powercore 4 muffler design for custom 4-stroke applications Developed to increase the horsepower and torque throughout the entire power curve...

Quiet on the trail as well as on the sound meter No power loss More packing volume-longer time between repacks USFS approved spark arrest...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally In addition, FMF achieves a shorter overall le...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diameter can...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and mo...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

With its longer oval canister, the trademarked Q uses internal technology that retains optimum flow characteristics while enhancing sound absor...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and mo...

EXPECTED DATE: 12/21/2023 The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures stre...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you don’t need to hear the power, just fee...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally In addition, FMF achieves a shorter overall le...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally In addition, FMF achieves a shorter overa...

Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum long...

Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum long...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you don’t need to hear the power, just fee...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally In addition, FMF achieves a shorter overa...

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

Uses the exclusive "Turbine Dampening System" Straight-through design of the spark arrestor canister and the Performance Flow stainless steel end ...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

Uses the exclusive "Turbine Dampening System" Straight-through design of the spark arrestor canister and the Performance Flow stainless steel...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and mo...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and mo...

Uses the exclusive "Turbine Dampening System" Straight-through design of the spark arrestor canister and the Performance Flow stainless steel...

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

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

The most popular 2-stroke silencers in FMF's arsenal The elliptically shaped bodies with perforated core perform well in any condition Equipped wi...

Uses the exclusive "Turbine Dampening System" Straight-through design of the spark arrestor canister and the Performance Flow stainless steel end ...

Uses the exclusive "Turbine Dampening System" Straight-through design of the spark arrestor canister and the Performance Flow stainless steel...

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

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

Built to provide excellent power for today’s tracks geared toward 4-stroke machines Smooth power curve throughout the RPM range Large diame...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and mo...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and most ...

Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum long...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you don’t need to hear the power, just fee...

Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum long...

The measure which others aim for With their lightweight titanium or extruded aluminum oval canisters mated to a perforated core, these silenc...

The measure which others aim for With their lightweight titanium or extruded aluminum oval canisters mated to a perforated core, these silenc...

Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum long...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and mo...

The Shorty Silencer is the most desirable silencer for supercross performance Overall length of canister and core is shorter to improve the h...

The most popular 2-stroke silencers in FMF's arsenal The elliptically shaped bodies with perforated core perform well in any condition Equipped wi...

Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum longevity I...

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...