K&N 57-2541 Performance Intake Kit for Select 1997-2004 Ford F-150/Expedition & Lincoln Navigator (5.4L)

Fits select 1997-2004 Ford F-150, Expedition, and Lincoln Navigator (5.4L).

The K&N 57-2541 Performance Intake Kit is engineered to reduce air path restriction by replacing the restrictive factory air filter and intake housing. This system features a rotationally-molded, high-density polyethylene (HDPE) intake tube designed to increase the volume of airflow to your engine. By providing a smoother, more direct path for air, it delivers a measurable increase in horsepower and torque.

This kit includes a signature K&N washable, reusable High-Flow Air Filter made from multi-layered oiled cotton media. Its oversized conical design allows for up to 100,000 miles of use between cleanings under normal highway driving conditions. To further optimize performance, a custom-fit heat shield protects the intake air from high engine bay temperatures. The entire bolt-on system is designed for a straightforward installation that can typically be completed in 90 minutes or less using common hand tools.

• Manufacturer Part Number: 57-2541
• Tube Material: Rotationally-molded high-density polyethylene (HDPE)
• Filter Media: Washable oiled cotton
• Filter Service Interval: Up to 100,000 miles (under normal highway use)
• Included Components: HDPE intake tube, conical air filter, custom heat shield, and mounting hardware
• Warranty: K&N Million Mile Limited Warranty