aFe Power Magnum FORCE 51-10542 Ford Motorhome Performance Air Intake System (Dry, 3-Layer Filter) Outflows the factory intake by up to 79%. Produces an additional 20 horsepower and 25 lbs. x ft. torque max gains 3-Layer non-oiled, washable synthetic media for the perfect balance of performance, protection and convenience Black powder coated heat shield Heat-insulating molded plastic tube replaces the stock intake tract This product is 50-state legal (CARB E.O Number D-550-3)