Yoshimura R11 Racing complete exhaust system kit - Vespa GTS - Dragster 300Yoshimura R11 complete exhaust system kit Full Racing Exhaust kit for the "DIE HARDS" This Exhaust kit is ready for the Circuits, it does not use any silincer. Delivers a Peak power of 1,8HP to a Stock engine. Crazy Sound, and a Full Racing looks. This Exhaust type is chosen as Maicson Ecu Tuning NR. 1 Most Power full exhaust that we have! Material: RVS CARBON Fits on : Vespa GTS 125 up to 2011 GTS25 up to 2011 GTS300 GTV300 HPE300 Italjet Dragster