aFe Power Magnum FORCE 54-11012 BMW 3-Series (E9x) Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 60% . Produces an additional 7 horsepower and 7 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power Durable powder-coated heat shield with a clear-coat aluminum cover Plastic, rotational mold intake tube 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.