Tecnigas Silent Pro Exhaust for Piaggio 50cc 2-Stroke

Tecnigas Silent Pro Exhaust for Piaggio 50cc 2-stroke scooters.The Tecnigas Silent Pro exhaust is a higher performing exhaust than stock, all while being quiet and maintaining a subtle look. Works well on 50cc and 70cc cylinders. fits the following models with Piaggio engines:Aprilia: SR50 LC, SR50 Motard, Scarabeo 50, Sport City One 50Derbi: Atlantis 50, GP1 50Piaggio: Fly 50, Typhoon 50Please Note: This exhaust is designed to conform to European Road Standards. Removing the manifold restrictor leads to a significant performance improvement. Head Pipe Bolt Hole Spacing: 49.5mm Head Pipe Inner Diameter: 19.5mm with restrictor removed. 13mm with restrictor in place. Includes Mounting Hardware and Instructional Booklet