FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE.The flagship of the Akrapovic exhaust system range, used and tested by our top factory teams in motorcycle racing. ItÆs simply the finest exhaust system available. Each model is unique and dedicated to maximizing the engineÆs performance, while reducing overall weight for optimized overall handling of the motorcycle. It is made entirely of titanium. Our exhaust systems meet FIM noise limits, feature a more durable welded bracket and titanium end cap.