K&N 04-08 Ford F-150 V8-5.4L High Flow Performance Kit

If you're looking to get more out of your 2004-2008 Ford F-150 with the 5.4L V8 engine, a K&N High Flow Performance Kit is a solid choice. This system is designed to replace your restrictive factory air intake, allowing your engine to breathe more freely. By improving airflow, you can expect a noticeable increase in both horsepower and torque, making your truck feel more responsive.

The heart of this kit is K&N's signature High-Flow Air Filter, made with oiled cotton filter media. This filter is washable and reusable, meaning you can clean and re-oil it for service intervals up to 100,000 miles under normal highway driving conditions. The intake tube itself is mandrel-bent aluminum, which helps maintain consistent airflow diameter for better performance. A custom heat shield is included to help block hot air from the engine bay, ensuring your engine gets cooler, denser air.

Installation is typically straightforward and can often be completed in under 90 minutes, with no special tools required beyond basic hand tools. K&N backs this kit with their Million Mile Limited Warranty, giving you confidence in its durability.