aFe Power Magnum FORCE 55-12551 Toyota Tundra Super Stock Intake System (Dry, 3-Layer Filter) Outflows the factory intake by up to 13%. Produces an additional 18 horsepower and 30 lbs. x ft. torque max gains. 3-Layer non-oiled, washable synthetic media for the perfect balance of performance, protection and convenience 3-1/2" Mandrel-bent wrinkle-black powder-coated intake tube 6061-T6 billet aluminum precision machined throttle body spacer with Serrated/Helix design creates intake turbulence in the combustion chamber This product is 50-state legal (CARB E.O Number D-550-16)