aFe Power Magnum FORCE 54-10391 Ford Diesel Truck 03-07 V8-6.0L (td) Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by 38%. Produces an additional 14 horsepower and 55 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power Replaces the factory airbox with a one-piece black stainless steel powder-coated intake housing Hassle-free installation that utilizes all factory mounting locations This product is 50-state legal for 2003-2007 models (CARB E.O Number D-550-4)