FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE.A complete high-quality exhaust system made from stainless steel tubes and atitanium muffler outer sleeve with precision handcrafting and attention to detail. Its unique design yields the maximum output for each specific motorcycle model while significantly reducing overall weight for top performance. It’s identical to our top-range Evolution Line exhaust system. The only difference is in the material used. Our exhaust systems meet FIM noise limits, feature a more durable welded bracket and titanium end cap.