aFe Power Magnum FORCE 54-11752-1 GM Silverado/Sierra Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 31% . Produces an additional 11 max horsepower and 13 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power Black powder-coated 18-guage heat shield; heat-insulating molded plastic tube replaces the stock intake tract; includes 3-angle adaptor with a built in mass air flow sensor pad Does not fit GM 2500/3500 with mechanical fan in 09-10 This product is 50-state legal (CARB E.O Number D-550-13)