AKRAPOVIC STEEL BLACK SILENCER SLIP ON VESPA GTS 300 2008-2020AKRAPOVIC BLACK SILENCER SLIP ON INOX Terminal: Steel Black slip on Code: S VE3SO9 HRSSBL APPROVED The Slip On represents the first step in exhaust system tuning. It is simple to install and replaces a stock muffler. It also offers the best combination of price and performance. With the Akrapovi Slip On system you will get more power, more torque, and less weight. The Akrapovi Slip On system gives your scooter that unmistakable deep resonant Akrapovi