90º Curved Air Filter Polini

90º inclined competition filter Polini Airbox.

Competition filters have a considerably larger surface area than original filters, which improves cylinder filling. The intake sound is louder.

You should increase the size of the main jet in the carburettor slightly, so that the mixture does not become too lean.

Choose between the short version (100mm) and the long version (130mm). Check the size of your carburettor's inlet to select the correct diameter.

Examples:
34mm for Dellorto PHVA-PHBN-PHBG-PHBD carburettors.
38mm for Dellorto PHBL carburettors