Polini Exhaust Evolution 2 70cc, racing exhaust by renowned Italian manufacturer Polini.
Suitable for vertical Minarelli engines and reserved for the race track or closed off roads.
The expansion chamber is made of thin sheet metal (rolled and welded) and comes with a black aluminium silencer (special Evo 2010 version).
Definitely a high-end exhaust even though performance on vertical engines puts it in the mid-race category. Ideally suited for vertical cylinders such as Polini Evolution 70, Malossi MHR Racing 70, Stage6 Racing 70, Hebo Manston Replica 70, Top Performances TPR 70cc Alu, etc.