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:YearMakeModelSubmodel2000-2001HondaCR125RBase

Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.This Part Fits:YearMakeModelSubmodel1995-2006KawasakiKDX200Base

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

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...

Hand-pounded seams for superior flow, lighter gauge metal for the Factory sound.This Part Fits:YearMakeModelSubmodel2021Gas GasMC 85Base

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 250SX/XC/XCW/300XC/XCW 2011-16/HSBRG/HQV TC/TE250/300 2011-16 Gnarly PipeThis Part Fits:YearMakeModelSubmodel2011-2016KTM250 SXBase2011-2016KTM250 XCBase2011-2016KTM250 XC-WBase2011-2016KTM300 XCBase2011-2018KTM300 XC-WBase

Tractor-like bottom end pull, thicker midrange and rugged 18-gauge steel construction.This Part Fits:YearMakeModelSubmodel2006-2010KTM250 XCBase2006-2010KTM250 XC-WBase2006-2010KTM300 XCBase2006-2010KTM300 XC-WBase

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

Hand-pounded seams for superior flow, lighter gauge metal for the Factory sound.This Part Fits:YearMakeModelSubmodel1999-2021YamahaYZ250Base

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