aFe Power Magnum FORCE 54-12202 BMW 335i (F30) Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 29% . Produces an additional 14 horsepower and 18 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power One-piece, black powder-coated 18-gauge heat shield 3.5 inch one-piece mandrel bent wrinkle-black powder-coated intake tube and unique (patent-pending) flange retention design that requires no hardware 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.