FMF Racing FMF Turbine Core 2 Offroad Series Specs: FMF TURBINE CORE 2™ OFFROAD SERIES• Low maintenance, lightweight and power retaining• Using the exclusive “Turbine Dampening System” this top-notchproduct has well earned its U.S. Forestry legal status• Straight through design of the spark arrestor canister and thePerformance Flow stainless steel end cap ensure strength,durability and track and trail proven unrestricted power• #1 spark arrestor in the world