aFe Power Magnum FORCE 54-82002 BMW 135i (E82/88)/535i (E60) Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 56% . Produces an additional 12 horsepower and 15 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power Molded plastic housing with a satin black powdercoated aluminum cover Oval intake tube smoothly supplies maximum air to the twin turbos 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.