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 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 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...

Give your Kawasaki KLX 110 or Suzuki DR-Z110 a stealthy performance upgrade with the Big Gun Evo M Series Black Out Full System Exhaust. The black powder-coated aluminum muffler and stainless steel...

Give your 1997-12 Honda XR or CRF 70 stronger performance with the Big Gun Evo M Series Full System Exhaust. The lightweight design helps shed weight while the TIG-welded 304 stainless steel head and...

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 250Base2021-2022

Unlock more performance from your 2001-13 Honda XR or CRF with the Big Gun Evo M Series Full System Exhaust. Its lighter-than-stock design helps reduce weight, while the TIG-welded 304 stainless...

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...

Hand-pounded seams for superior flow, lighter gauge metal for the Factory sound.This Part Fits:YearMakeModelSubmodel2022YamahaYZ125Base

Hand-pounded seams for superior flow, lighter gauge metal for the Factory sound.This Part Fits:YearMakeModelSubmodel2019-2021YamahaYZ85Base

The most copied pipe in the world and #1 best seller for FMF, the Fatty broadens the powerband and provides significant increases throughout.This Part Fits:YearMakeModelSubmodel2002-2018YamahaYZ85<

Reduce exhaust volume by approximately 6–8 decibels with the Big Gun 5-Inch Vortex 2 Quiet Insert. Designed for most compatible Big Gun Exhaust Systems, it installs in minutes and provides quieter...