aFe Power Magnum FORCE 54-12672 Audi A3/S3 Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 18% . Produces an additional max 18 horsepower and 19 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power Powder-coated one-piece heat shield snaps on to the top of the lower half of the factory air box One piece 3" mandrel-bent wrinkle-black powder-coated aluminum 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.