FMF Factory — Pipe — GasGas EC 250 (2021-2023), GasGas EC 300 (2021-2023) + 21 — (see

The Factory Fatty is our top-tier 2-stroke expansion chamber, built with hand-cone construction in our Southern California factory. The Factory designation means each pipe is hand-rolled and TIG-welded for a true factory-replica race pipe. Broadens the powerband across the entire RPM range with improved throttle response.

• Hand-cone, hand-rolled construction — built in California
• Tru-Flo stamping process for exact fit
• Broad powerband with strong over-rev
• Hand-TIG-welded seams
• Includes O-rings

Fitment: 2-stroke bike specific — fits the following models:

• GasGas EC 250 (2021-2023)
• GasGas EC 300 (2021-2023)
• GasGas EX 250 (2022)
• GasGas EX 300 (2021-2022)
• GasGas MC 250 (2022-2023)
• Husqvarna TC 250 (2019-2022)
• Husqvarna TE 250 (2023)
• Husqvarna TE 250i (2020-2022)
• Husqvarna TE 300 (2023)
• Husqvarna TE 300i (2020-2022)
• Husqvarna TE 300i ROCKSTAR EDITION (2021)
• Husqvarna TX 300 (2019)
• Husqvarna TX 300i (2020-2022)
• KTM 250 SX (2019-2022)
• KTM 250 XC (2019)
• KTM 250 XC TPI (2020-2022)
• KTM 250 XC-W (2023)
• KTM 250 XC-W TPI (2020-2022)
• KTM 300 EXC TPI ERZBERGRODEO (2020-2021)
• KTM 300 XC (2019)
• KTM 300 XC TPI (2020-2022)
• KTM 300 XC-W (2023)
• KTM 300 XC-W TPI (2020-2022)

This is a 2-stroke exhaust. It is engineered for the 2-stroke engine architecture above and physically will not fit a 4-stroke bike. Verify your engine type before purchase.