aFe Power Momentum HD 50-74004 GM Diesel Truck 07.5-10 V8-6.6L (td) LMM Performance Intake System (Oiled, 10-Layer Filter) Outflows the factory intake by 42% . Produces an additional 20 horsepower and 57 lbs. x ft. torque 10-Layer progressively finer oiled, washable cotton gauze media for maximum performance Smooth one-piece sealed housing with unique filter to housing interface (patent pending) for easy installation Also features a CAD designed, dyno tuned roto-molded intake tube, auxiliary air scoop and clear sight window