aFe power Momentum GT 51-74101 GM Gas Truck/SUV Performance Intake System (Dry, 3-Layer Filter) Outflows the factory intake by up to 55% . Produces an additional 15 max horsepower and 34 lbs. x ft. torque 3-Layer non-oiled, washable synthetic media for the perfect balance of performance, protection and convenience Smooth one-piece sealed housing with auxiliary air scoop and built-in sight window This kit does NOT come with factory MAF cartridge & sensor This product is 50-state legal (CARB E.O Number D-550-13)