RACING SILENCER AKRAPOVIC Slip-On Line Material: Carbon Not approved, Optional supports not included. FITMENT NOTICE FOR US MARKET: Exhaust system fits on 2020 S 1000 RR US model. For 2019 US models, see products listed under 2018 model year. The Slip-On line represents the first step in the tuning of exhaust systems. It is simple to install and replaces a standard terminal, offering the best compromise between price and performance. With the Akrapovic Slip-On system we have more power, the unmistakable deep and thundering Akrapovic sound, greater torque value and less weight. Each silencer is equipped with high quality carbon fiber end caps, also produced by Akrapovic.