This full system is complete with a lightweight titanium muffler and stainless steel headers, providing a weight savings of over 20% alongside increased power and torque gains. The stunning sporty Akrapovi? sound is ideally suited to the bike’s racing culture. It is styled on the current Red Bull Honda World Superbike Team system as used in competition worldwide and has easy installation. ECU remapping is required.If passenger footrests are not installed carbon fibre muffler bracket is mandatory (as shown on the product image).For perfect performance, throttle response, and durability, special mapping developed by Akrapovi? R&D in collaboration with our partner Rapid Bike by Dimsport has to be used. Please visit https://www.dimsport.us/en/rapid-bike/akrapovic/, where you can download the mapping.THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.