K&N 97-04 Ford F-150 V8-4.6L/5.4L High Flow Performance Kit

If you're looking to get more out of your 1997-2004 Ford Expedition with a V8 engine, this K&N High Flow Performance Kit is designed to help. This system replaces your factory air intake with a mandrel-bent aluminum tube and a high-flow air filter, aiming to improve airflow into the engine. Better airflow can lead to a noticeable increase in both horsepower and torque, making your truck feel more responsive.

The kit includes K&N's signature washable and reusable air filter, which uses oiled cotton media to capture dirt while allowing plenty of air through. K&N claims you can go up to 100,000 miles between servicing the filter under normal highway conditions. A custom heat shield is also part of the package, helping to keep hotter engine bay air away from the intake charge, which is crucial for performance. Installation is typically straightforward and can often be completed in under 90 minutes, with no special tools required beyond what you'd normally find in a basic mechanic's set.

This K&N intake system is backed by their Million Mile Limited Warranty, and it's designed to fit directly onto your specified Ford Expedition, F-150, or Lincoln Navigator models. Remember to check the product's CARB status if you are in California, as some performance intakes are not street legal there.