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 damage and complementary to our Factory Forward...

Race-inspired, price-point muffler made for maximum power output. Aircraft-quality extruded aluminum canister with stainless steel components.This Part Fits:YearMakeModelSubmodel2006-2009HondaCRF250RBase

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 flow.This Part...

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 damage and complementary to our Factory Forward...

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 of a shorter header.This Part...

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. Aluminum construction and stainless steel Hi-Flo end...

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 flow.This Part...

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 damage and complementary to our Factory Forward...

FMF Racing KTM250SX 19-2/250-300XC/XCWTPI 20-3/HQTC250 19-2/TE/X250i-300i 20-33/GGEC/EX250 PC 2.1This Part Fits:YearMakeModelSubmodel2021-2022Gas GasEC 250Base2021-2022Gas GasEC 300Base2021-2022Gas GasEX 300Base2019-2021KTM250 SXBase2019KTM250...

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 performance flow stainless steel end cap to ensure strength,...

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 arrestor provides best performance and freer flow.This...

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 Fits:YearMakeModelSubmodel2011-2016KTM200 XC-WBase2011-2016KTM250...