FMF's best selling Turbinecore 2.1 uses the exclusive "Turbine Dampening System". This top-notch product has well earned its U.S. Forest legal status. 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 Turbinecore 2.1 is the #1 spark arrestor in the world.

• Race-tested, smooth power curve throughout the RPM range.
• Engineered to assault today's tracks and trails
• Larger diameter canister for more tunability and longer lasting packing life.
• Delivers a crisp, notable sound.
• Lighter than stock.
• Optimally designed to complement performance of FMF pipes; works and fits FMF or stock.
• USFS Approved Spark Arrestor