SP-Series titanium end cans with silencers. Akrapovic's SP-Series titanium end cans represent the first step in the process of tuning the exhaust system and they offer a great balance between price and performance. Change your motorcycle's horsepower by adding more power, improved performance and the unique Akrapovic sound. All of it filled out with elegantly designed Slip-On systems; the GP-style Megaphone is made from titanium, a material proven for its durability through MotoGP racing. Modifying the exhaust system results in a significant rise in performance and a drop in weight.