FMF

Smooth power curve throughout the RPM rangeLarge diameter canister for more tunability and longer lasting packing lifeThe EXTREME silencer delivers...

The ultimate power booster featuring exclusive Ti-Metal constructionImproved bottom to mid-range powerProduce the low end of a longer header and th...

Factory Forward Engineering centralizes mass, improves handlingMade from premium quality American materialsCustomize with performance tuning insert...

Factory Forward Engineering centralizes mass, improves handlingMade from premium quality American materialsCustomize with performance tuning insert...

Utilize FMF's patented module precisely located at the initial stage of the header for specific applicationsPosition "Bomb" increases performanceHo...

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end capsThe lightest mufflers availableSuperior power and...

Overall increase in power and torqueDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInter...

Shorter overall length that is less susceptible to crash damageMassive Power gains throughout the RPM range.Huge weight savingsRapid Tuning System ...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

The ultimate power booster featuring exclusive Ti-Metal constructionImproved bottom to mid-range powerProduce the low end of a longer header and th...

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

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

Overall increase in power and torqueDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInter...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

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

Straight-through design of the spark arrestor canister and the Performance Flow stainless steel end cap ensure strength, durability and unrestricte...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

Includes MegaBomb headerThe Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length tha...

The ultimate power booster featuring exclusive Ti-Metal constructionImproved bottom to mid-range powerProduce the low end of a longer header and th...

The ultimate power booster featuring exclusive Ti-Metal constructionImproved bottom to mid-range powerProduce the low end of a longer header and th...