Slip-Ons represent the first step in the exhaust system tuning process, and they offer a great balance between price and performance Sporty and lightweight Slip-On Line exhaust systems are a perfect match for this great Aprilia The visual change comes with stylishly shaped carbon fiber muffler and end cap In addition to design effects and improved power delivery, Slip-Ons also enhance the Aprilia sound Let your bike stand out with more power, beautiful design, and the unique Akrapovic sound of Slip-Ons Passenger footrest for mounting needed. MUFFLER TI/CF/CF RSV4