Sport exhaust for Vespa models with headlight on the fender (so called lamp down models). The original look of the original exhaust has been nearly kept, but the performance values correspond to those of a modern two-stroke resonance system. Only with such an exhaust the full potential of a tuning cylinder can be explored. But it also offers a remarkable performance plus on original engines.
Same design as VSP. Widebox, SIP Road XL, Bollag etc.