The Akrapovic Racing system is designed for riders who demand maximum performance. The Akrapovic racing system is lighter when compared to the 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. The evolution line exhaust system features titanium headers and a titanium canister. This item is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.