aFe Power Magnum FORCE 75-10782 GM Diesel Truck 01-04 V8-6.6L (td) LB7 Performance Intake System (Oiled, 7-Layer Filter) Outflows the factory intake by 42% . Produces an additional 12 horsepower and 28 lbs. x ft. torque 7-Layer oiled, washable media with 5 layers of progressively finer cotton gauze and 2 layers of synthetic material for high-performance air flow with maximum filtration efficiency, the only filtration media of its kind to be granted a U.S. patent Powder-coated one piece housing utilizes stock mounting locations Heat-insulating molded plastic tube with a built in mass air flow sensor pad replaces the stock intake tract This product is 50-state legal (CARB E.O Number D-550-4)