The final is the first step in upgrading the exhaust system. It is simple to install and replaces the factory one; it also offers the best combination of price and performance. With the Akrapovic final you get more power, more torque, and less weight.The Akrapovic final gives your scooter the unmistakable deep Akrapovic sound and the black outer housing dramatically changes the look.Each final features the finest Akrapovic carbon fiber caps on the finish.EC type approval is only valid when the catalytic converter is installed. (code: P-KAT-069)