PSDesigns BMW S54 Velocity Stack Idle Valve Air Filter

Description

Replacement Idle Air Filter for our Increasingly popular PSDesigns BMW S54 Velocity Stack Conversion, the most complete conversion available for the BMW S54 Engine, as found in several BMW M Power Cars including the BMW E46 M3 and the BMW Z4M.

Sock style air filters, which feature one hole cut out of the foam on the underside of the air filter. The hole is designed so that you can pull the air filter over the top of the engine’s idle control valve. They are constructed completely of foam which enables them to locate in the most difficult of areas and gives the most air flow.