FMF Fatty Pipe

Fits The Following Bikes:

KTM 250 SX 2019-2022
KTM 250 XC 2019
KTM 250 EXC TPI 2021-2022
KTM 250 EXC 2023
KTM 250 XC TPI 2021-2022
KTM 250 XC-W 2023
KTM 250 XC-W TPI 2021-2022

KTM 300 EXC CKD 2021-2022
KTM 300 EXC TPI 2021-2022
KTM 300 EXC TPI ERZBERG EDITION 2021
KTM 300 EXC TPI ERZBERGRODEO 2022-2023
KTM 300 EXC 2023
KTM 300 XC TPI 2021-2022
KTM 300 XC-W TPI 2021-2022
KTM 300 XC-W TPI ERZBERG EDITION 2021
KTM 300 XC-W TPI ERZBERGRODEO 2022-2023
KTM 300 XC-W 2023

GAS GAS EC250 2021-2023
GAS GAS EX250 2022-2023
GAS GAS MC250 2022-2023

GAS GAS EC300 2021-2023
GAS GAS EX300 2021-2023


HUSQVARNA TC 250 2019-2022
HUSQVARNA TE 250 2023
HUSQVARNA TE 250i 2020-2023

HUSQVARNA TE 300 2023
HUSQVARNA TE 300i 2020-2023
HUSQVARNA TX 300 2019


KTM OEM replacement part: 55705007000
KTM OEM replacement part: 55505007100
KTM OEM replacement part: 55505007000

For compatibility with your bike model please check the KTM spare parts catalogue.




With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance. The Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you’re looking for.

-More tractable power, improved throttle control
-Provides power gains throughout entire power band
-Carbon steel with a nickel plated finish for maximum durability
-FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance.
-Can be used with FMF or stock silencer (unless noted)
-Our most popular 2-stroke pipe
-O-Rings Included