Constructed From Race-Proven Materials: Carbon Fibre For The Muffler Sleeve And Titanium For The End Cap And Link Pipe,The Racing–Inspired Design Has A Smaller Sportier Appearance And That Exhilarating Akrapovic Sound To Heighten The Senses. It Is A Simple Plug-And-Play Installation With No Remapping Needed, And Is Designed For Track Use And Markets Where EC/ECE-Type Approval Is Not Required.  There Are Optional Headers For Improved Torque And Power, Especially From The Mid-Range Upwards.If Passenger Footrests Are Removed Optional Aluminium Or Carbon Fibre Muffler Bracket Is Needed.THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.