aFe Power Magnum FORCE 54-81072 GM Truck/SUV Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 31% . Produces an additional 11 max horsepower and 23 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power Heat-shielding molded plastic housing with an auxiliary inlet duct and an attractive black aluminum cover Heat-insulating molded plastic tube replaces the stock intake tract; includes 3-angle adaptor with a built in mass air flow sensor pad This product is 50-state legal (CARB E.O Number D-550-13)