FMF

Features a Hi-Flo stainless steel core and formed end caps Aircraft grade aluminum canister You will swear the motor has been bored and str...

Developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and comp...

Rapid Tuning System (RTS) Shorter overall length that is less susceptible to crash damage Massive Power gains throughout the RPM range. Huge weigh...

The lightest mufflers available Superior power and performance - horsepower improved throughout the rpm range Feature exclusive proprietary...

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps The lightest mufflers available Superior...

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps The lightest mufflers available Superior...

Developed over years of championship off-road racing Twin-stage core design for lower sound output and extended life of packing material Co...

Less sound equals more ground Meets FIM World Enduro sound regulations Power gains throughout the entire rpm range Spark arrestor include...

Hi-Flo end cap boosts all-around performance Computer-designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation del...

The lightest mufflers available Superior power and performance - horsepower improved throughout the rpm range Feature exclusive proprietary...

The muffler comes complete and does not require any extra parts for installation on the vehicle, all included components are listed in the user...

The lightest mufflers available Superior power and performance - horsepower improved throughout the rpm range Feature exclusive proprietary...

The Header Pipe comes complete and does not require any extra parts for installation on the vehicle, all included components are listed in the use...

Massive Power gains throughout the RPM range New RTS (Rapid Tuning System) Huge weight savings Make Model Year HONDA CRF250R 22-25 HONDA...

Hi-Flo end cap boosts all-around performance Computer designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation del...

Utilize FMF's patented module precisely located at the initial stage of the header Position "Bomb" increases performance; horsepower is incre...

Hi-Flo end cap boosts all-around performance Computer designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation delivers a...

Utilize FMF's patented module precisely located at the initial stage of the header Position "Bomb" increases performance; horsepower is incre...

Utilize FMF's patented module precisely located at the initial stage of the header Position "Bomb" increases performance; horsepower is incre...

Utilize FMF's patented module precisely located at the initial stage of the header Position "Bomb" increases performance; horsepower is incre...

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

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

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

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps The lightest mufflers available Superior power ...

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps The lightest mufflers available Superior power ...

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

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

Hi-Flo end cap boosts all-around performance Computer-designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation del...

Developed over years of championship off-road racing Twin-stage core design for lower sound output and extended life of packing material Co...

Less sound equals more ground Meets FIM World Enduro sound regulations Power gains throughout the entire rpm range Spark arrestor included Pounds ...

Hi-Flo end cap boosts all-around performance Computer-designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation del...

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

Utilize FMF's patented module precisely located at the initial stage of the header Position "Bomb" increases performance; horsepower is incre...

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

Utilize FMF's patented module precisely located at the initial stage of the header Position "Bomb" increases performance; horsepower is incre...

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

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 Equi...

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 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 original Powercore is a lightweight and compact silencer constructed of an extruded aluminum canister with a nickel plated stinger and end ...

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

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

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

TurbineCore 2 design for older 2-stroke applications Come complete with assorted mounting hardware for do-it-yourself applications

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