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.

A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the "Bomb" at this key point, the expansion and contraction of exhaust sonics through the system...

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.

The most copied pipe in the world and #1 best seller for FMF, the Fatty broadens the powerband and provides significant increases throughout.

FMF Racing KTM 250SX 19-22/250-300XC/XCWTPI 20-3/HQTC250 19-22/TE/X250i-300i 20-3/GGEC/EX250 PC2.1

The most popular 2-Stroke silencer in the FMF arsenal. Balances power enhancements into a lightweight extruded aluminum oval canister design. Equipped with a "Performance Flow" end cap and nickel-plated front stinger. Easy maintenance and is completely...

The FMF Rev Pipe focuses on power delivery in the middle and upper RPMs of the powerband. If you're short on power up top, want more time between shifts and spend your time in deep berms or sand, the Rev is the pipe for you.

Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.

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.

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.

Race-inspired, price-point muffler made for maximum power output. Aircraft-quality extruded aluminum canister with stainless steel components.This Part Fits:YearMakeModelSubmodel2019-2021HondaCRF125FBase