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

The ultimate power booster featuring exclusive Ti-Metal construction Improved bottom to mid-range power Produce the low end of a longer header and...

The ultimate power booster featuring exclusive Ti-Metal construction Improved bottom to mid-range power Produce the low end of a longer header and...

Taking the proven success of the Powercore 2, FMF created the Powercore 2 Shorty, with a shorter inner core length and aluminum canister This desi...

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

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

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

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

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

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

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

RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output Internal ducts in th...

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology both internally and externally Shorter overall length that is less susceptible ...

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology both internally and externally Shorter overall length that is less susceptible t...

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology both internally and externally Shorter overall length that is less susceptible t...

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology both internally and externally Shorter overall length that is less susceptible t...

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’ c...

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology both internally and externally Shorter overall length that is less susceptible t...

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology both internally and externally Shorter overall length that is less susceptible t...

With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance The Fatty broadens and smooths...

Pipe focuses its power delivery in the middle and upper RPM of the power band If you're running out of power up top, want more time between shifts...

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’ c...

With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance The Fatty broadens and smooths...

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’ c...

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

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

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