aFe power Momentum GT 54-74101 GM Gas Truck/SUV Performance Intake System (Oiled, 5-Layer Filter) Outflows the factory intake by up to 55% . Produces an additional 15 max horsepower and 34 lbs. x ft. torque 5-Layer progressively finer oiled, washable cotton gauze media allows maximum airflow for maximum power 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)