aFe Power Magnum FORCE 54-11142 BMW 550i (E60)/650Ci (E63/64) Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 45% . Produces an additional 12 horsepower and 11 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power 16 gauge, powder-coated heat shield with a clear-coat aluminum cover Unique precision machined, billet aluminum 3-angle adaptor 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.