aFe Momentum Pro Dry S air intake systems are designed around large 7.5 in. tall, oil-free, 3-layer filters with progressively finer porosity synthetic media. Each of these incredible filters fit into an equally impressive one-piece housing with an auxiliary air scoop and a large clear sight window. When combined with the housing, these systems outflow the factory unit by 31 percentyielding average gains of 11 hp and 13 lbs.-ft. of torque. They also include a urethane plug to block the scoop if not used. Give your engine more go power with aFe Momentum Pro Dry S air intake systems.