aFe Power Momentum&nbsp;54-82362 BMW 328i (F30) Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 42% . Produces an additional 10 horsepower and 14 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power One-piece, patent pending black roto-molded airbox with molded in louvers Does not fit vehicle with N20 engine This product is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.