The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and most importantly, track and trail proven unrestricted power
The 2.1 utilizes a shape inspired by the 4.1 system
Utilizes exclusive FMF "Turbine Dampening System"
U.S. Forest Service legal status
FITS - 2021-20230 Gas Gas MC 125, 2019-2022 Husqvarna TC 125, 2019-2022 KTM 150 SX, 2019-2022 KTM 125 SX