K&N 03-04 Lincoln Navigator V8-5.4L DOHC Performance Intake Kit

If you're looking to get a bit more pep out of your 2003 or 2004 Lincoln Navigator with the 5.4L V8 engine, this K&N performance intake kit is a solid option. It's designed to help your engine breathe easier, which can lead to a noticeable improvement in how it performs. This kit replaces your restrictive factory airbox with a smoother, larger diameter tube and a high-flow air filter.

The intake tube is made from high-density polyethylene (HDPE) using a rotational molding process, which helps increase the volume of air reaching your engine. K&N guarantees this will result in more horsepower and torque. The kit includes a washable and reusable K&N High-Flow Air Filter with oiled cotton media. Its large, conical shape is designed to capture more air, and under normal highway driving, you can go up to 100,000 miles before needing to service the filter. A custom heat shield is also part of the package, helping to keep the intake air cooler by blocking heat from the engine bay. This can make a difference in performance, especially on warmer days.

Installation is usually straightforward and can often be done in about an hour with basic hand tools. K&N backs this kit with their Million Mile Limited Warranty, giving you peace of mind with your purchase.