- 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 - 2013-2019 Beta 300 RR