Polini Team 4 approved muffler for scooter. Polini's Scooter Team 4 mufflers are created for the track but approved for the road; for Yamaha / Minarelli horizontal and vertical engines and for Piaggio and Puegeot engines derive from the commitment and development of Polini on the racing circuits, more specifically in the Polini Italian Cup. Polini technicians have perfected the expansion measures by increasing the number of cones to obtain the maximum performance increase and an even more racing look. Derived from the Polini Big Evolution this exhaust is in aluminum with removable bottom for replacing the sound-absorbing material.
Finally, the approval allows the use of this exhaust for scooter 50 both on the track and on the road. Specific for: Aprilia SR50 R-Factory Motore Piaggio E4 2T water cooled.