Polini Evolution oval air filter delivers significantly enhanced intake capacity compared to standard filters, boosting cylinder filling and engine performance.

The expanded foam design requires main jet enlargement to prevent lean mixture and cylinder overheating. Universal fitment across 28–55mm carburetor connections with six included adapters (28mm, 35mm, 42mm, 46mm, 49mm, 55mm) covers most scooter and motorcycle models.

• Dimensions : 160mm length × 145mm width
• Straight outlet. Black/blue finish.
• Compatible with Dellorto, Keihin, Mikuni, Polini, Gurtner, and TK carburetors, plus original Honda, Kymco, Daelim, and Sym units across all connection sizes. 

Note : Measure connection diameter on the carburetor itself. Rubber mounts compress slightly during installation, appearing smaller than stated specifications.