Air filter for BMW Serie 3 - E21

The principle of intake is simple: the more air that can enter the combustion chambers, the greater the efficiency. To help the engine fill up with air, several Sport filtration solutions are available. The direct intake kit allows a greater volume of air to be drawn in, giving the engine a truly singing sound.

The dynamic intake is based on the same principle, but the filter is enclosed in a shell with a duct connected to the front face by scoops, bringing fresh air to the engine and being more efficient. The Sport filter cartridge in the original airbox is a good solution for modern vehicles that already have an original dynamic intake system.

All Sport filters are washable and can be reused for a very long time, depending on maintenance.