FMF Racing

Shorter inner core length and aluminum canister. Finely tuned bolt-on silencer that maximizes bottom-end and mid-RPM. An excellent choice for tight tracks and Supercross tracks.This Part...

The Turbinecore 2 is low maintenance, lightweight and retains power with the exclusive "Turbine Dampening System". This top-notch product features a straight through spark arrestor canister and...

Hand-pounded seams for superior flow, lighter gauge metal for the Factory sound.Hand pounded seams for smooth flow transitions19-gauge steel on the header positionLighter 20-gauge steel on the...

The most copied pipe in the world and #1 best seller for FMF, the Fatty broadens the powerband and provides significant increases throughout.Increases throttle response and enhances over-revTru-Flo...

Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.O-rings includedThis Part Fits:YearMakeModelSubmodel1999-2021YamahaYZ250Base2016-2021YamahaYZ250XBase

The redesigned PowerBomb is a 4-stroke header that incoporates FMF's patented PowerBomb module at a precise location in the initial stage of the header, resulting in performance gains and improved...

The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding...

The ultimate power boost, the MegaBomb Headers improve performance along the bottom and mid-range powerband. Patented FMF technology combines the benefits of a longer header, with top end peformance...

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash...

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash...

The Turbinecore 2 is low maintenance, lightweight and retains power with the exclusive "Turbine Dampening System". This top-notch product features a straight through spark arrestor canister and...

Factory forward engineering helps maintain proper center of gravity and neutral handling. Larger volume canister yet lightweight overall, repacking intervals lengthened. USFS-approved turbine spark...