Description
Racing air filter Polini Evolution straight
Large-volume Polini Evolution air filter, especially for PHBG carburetors with corresponding adapter and 39mm connection. This racing air filter consists of two layers of foam and has a very high air flow rate. Here in the straight version, 185mm long and 85mm wide.
We recommend that you order a carburetor jet set to optimally match the carburetor to the air filter.
Suitable for carburetors with 39mm connection
Dellorto PHBG 15-21mm (with adapter)
Note: The connection is measured on the carburetor. The rubber mounts of air filters are often slightly smaller, as the rubber expands during installation.
what are the benefits of open air filters?
Pod air filters are installed in place of the original air filter box of scooters, motorcycles or even mopeds to increase the air flow and thus improve performance and cooling of the engine.
However, using an open pod filter can make the vehicle louder, leads to slightly worse fuel economy, and it is possible that water gets into the engine during heavy rain. But what the heck - open air filters just sound great!
Just as with original air filter inserts, it is important to clean the air filter regularly with air filter cleaner.
Note: When installing an open sport air filter, the carburetor must be readjusted, i.e. in most cases the jet has to be changed.