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

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.

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

FMF Racing KTM 250SX/XC/300XC 17-18 250/300EXC/ 17-19/HSQ TC250/TX250/300 17-18/TE250/300i GnarlyThis Part Fits:YearMakeModelSubmodel2017-2018KTM250 SXBase2017-2018KTM250 XCBase2017-2018KTM250 XC-WBase2019KTM250 XC-W TPIBase2017-2018KTM300...

FMF Racing KTM 65SX 2016-23/HQV TC65 2017-23/Gas Gas MC65 2021-23 Factory Fatty PipeThis Part Fits:YearMakeModelSubmodel2021-2023Gas GasMC 65Base2016-2023KTM65 SXBase

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:YearMakeModelSubmodel2021-2023Gas GasMC 65Base2016-2023KTM65 SXBase

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

Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.This Part Fits:YearMakeModelSubmodel2020-2021Beta200 RRBase

Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.This Part Fits:YearMakeModelSubmodel2020Sherco300 SE FactoryBase

FMF Racing KTM250SX 19-2/250-300XC/XCWTPI 20-3/HQTC250 19-2/TE/X250i-300i 2020-3/GGE/EX250-300 FattyThis Part Fits:YearMakeModelSubmodel2021-2022Gas GasEC 250Base2021-2022Gas GasEC 300Base2021-2022Gas GasEX 300Base2022Gas GasMC 250Base2019-2021KTM250...

FMF Racing KTM250SX 19-22/250-300XC/XCWTPI 20-3/HQTC250 19-22/TE/X250i-300i 20-3/GGEC/EX250 GnarlyThis Part Fits:YearMakeModelSubmodel2019-2021KTM250 SXBase2019KTM250 XCBase2020-2022KTM250 XC TPIBase2023KTM250 XC-WBase2020-2022KTM250 XC-W...