If you are looking to get some extra horsepower out of your F-150, look no further. This Airaid Intake System is a true bolt-on system, and comes with everything you need to install it in minutes. The key ingredient to this system is their innovative SynthaFlow series high flow filter that is protected from engine heat by their Cool Air Dam (CAD) design. All Airaid Premium Filters are washable and reusable. Applications: 2004 Ford F-150 4.6L 2005-2007 Ford F-150 XL 4.6L 2005-2007 Ford F-150 XLT 4.6L 2005-2007 Ford F-150 STX 4.6L