aFe Power Magnum FORCE 51-11982-P Performance Intake System for Ford Mustang (Dry, 3-Layer Filter) Outflows the factory intake by up to 33%. Produces an additional 22 horsepower and 27 lbs. x ft. torque max gains. 3-Layer non-oiled, washable synthetic media for the perfect balance of performance, protection and convenience One-piece heat shield with auxiliary air scoop Polished aluminum tube with a built-in MAF pad This product is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.