Polini Big Evolution 84-94cc Exhaust Piaggio scooter

Technical features:
- The exhaust nozzle has 3 holes to fit perfectly to the cylinder, preventing possible leaks and power loss
- The manifold is connected through a supplied tube to achieve a Venturi effect that fills the exhaust gas flow, increasing power up to 14,000 rpm with a good adjustment of your bike.
- The look and shape of the exhaust give a very racing touch to your bike and have also been designed to offer maximum performance and to be mounted together with the TORSEN WD. The exhaust comes uncoated, it is recommended to coat the exhaust to prevent rust
- The curve of the silencer is removable, so that nozzles of different diameters can be inserted to increase the engine's revolutions.
- The silencer in black anodized aluminum is a bit longer to reduce noise, and the internal diameter is slightly larger to improve acceleration.

Quality made by Polini!