This Ford F150 Cold Air Intake fits 2004-2008 5.4L F-150's and features the ROUSH air filter, air dam, and induction tube.The ROUSH air filter media is a synthetic nano-fiber material that traps the smallest dirt particles that ordinary cotton-gauze "performance" filters can't capture. ROUSH air filters are constructed using the finest materials available today, featuring a hand-poured urethane body that won't crack, curl or shrink like other rubber or plastisol units used by our competitors. This ROUSH air filter is 100% washable. The ROUSH Cool Air Dam surrounds the filter, helping to keep out hot air from the engine, further maximizing performance.The engine through a Modular Intake Tube (MIT) that can improve airflow up to 400 CFM over the restrictive stock intake tube. Made from cross-linked, high-density polyethylene, the MIT straightens out air flow by providing a smooth, unrestricted path that increases air flow to the engine.