K&N 77 Series Air Intake System 4.6L/5.4L F-150 1997-2004

Replace your 1997-2004 F-150’s factory air filter and intake tube while fostering torque through this air intake system (77-2514KP). Whether you’re running a 4.6L or 5.4L engine, this K&N system helps build around 9.7 horsepower gains at 4093 RPM. Mandrel-bent tubing makes it possible, using an aluminum construction with a show-stealing, mirrored finish. For lasting operation, it uses a cotton gauze air filter element that’s both washable and reusable. It only requires cleaning after every 100,000 miles under normal highway conditions, making it low maintenance.

Features and Benefits:
- Replaces factory air filter & intake tube
- 9.7 estimated horsepower gains @ 4093 RPM
- Increases torque
- Intake tube mandrel bent from aluminum
- Bright, mirrored finish
- Red, cotton gauze air filter element
- Filter requires cleaning every 100,000 miles
- Includes 9 stainless steel clamps

Vehicle Fitment:
- 1997-2004 Ford F-150
- For models with a 4.6L or 5.4L engine ONLY

Tech Tip: Whenever the filter element needs to be replaced, you can find a replacement under K&N P/N: RU-5046.