The Akrapovic Racing system is designed for riders who demand maximum performance. Racing system is lighter if compared to stock exhaust system and features exceptional production quality, hi-tech materials and of course increased engine performance combined with pure racing sound output. Featuring a completely new-shape muffler design—inspired by Akrapovic’s involvement with top-class race teams, the Racing Line exhaust will give the bike that “Grand Prix” look and also totally transform the bike by adding more power, improving performance, and giving it that unique sporty Akrapovic sound.For perfect performance, throttle response and durability special developed mapping from Dynojet has to be used. Please visit http://www.powercommander.com/powercommander.THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.