Air filter Polini Big Evolution conical, attack Carburetor D.28-35-42-45-49-55

Carburettor connection D.28-35-42-45-49-55 BIG EVOLUTION AIR FILTERS EASY TO ASSEMBLE Increase the range of BIG EVOLUTION air filters, components of fundamental importance in the set-up of a racing engine to better optimise engine carburation. The special sponge guarantees a high filtering capacity that allows air impurities to be trapped but, at the same time, allows a large air flow to pass through. Filter 203.0159 has a truncated cone shape to allow easy fitting and safe housing on Yamaha Minarelli horizontal engines equipped with Polini PWK carburettor. The filter 203.0160 has a truncated cone shape to allow easy fitting and safe housing and comes complete with a set of sleeves of different diameters adaptable to the most common carburettors.