K&N Filters Performance Air Intake Kit for 1997–2004 F150 4.6/5.4L (KNN77-2514KP)
The K&N Filters Performance Air Intake Kit for 1997-2004 F150 4.6/5.4L (KNN77-2514KP) is engineered to improve airflow and enhance throttle response in your Ford truck. Designed for both the 4.6L and 5.4L engines, this intake kit helps reduce restriction, enabling better horsepower and torque performance. A high-flow air filter and durable aluminum intake tube replace the factory system with a more efficient, street-legal upgrade. Ideal for everyday drivers and enthusiasts who want reliable performance with long service intervals.
Features and Specifications:
Vehicle Fitment: 1997-2004 Ford F150 with 4.6L or 5.4L engine
Air Filter Color: Red
Air Filter Outlet Shape: Round
Included: Mounting Hardware, 9 Clamps, and 3 Couplers
Clamp Material: Stainless Steel
Clamp Style: Regular
Intake Pipe Color / Finish: Bright Mirrored Finish
CARB EO Number: D-269-29
Estimated Horsepower Gain: 9.7 HP @ 4093 RPM
Replacement Filter: RU-5046
Horsepower Boost: Increases engine horsepower and torque.
High-Flow Design: Mandrel-bent aluminum intake tube for smooth airflow.
Advanced Filtration: Oversized oiled cotton air filter for superior protection.
Factory Replacement: Directly replaces OEM air filter and intake tube.
Low Maintenance: Filter needs cleaning only every 100,000 miles under everyday driving.
Easy Installation: Installs in under 60 minutes using basic hand tools.
Street Legal In All US States: Not legal for sale or use in California on any pollution-controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status of your vehicle in the application listings.
Product identification
- Brand: K&N Filters
- Model / MPN: KNN77-2514KP




