Description

Enhance your vehicle’s performance with the K&N Filters Performance Air Intake Kit for F150/Expedition/Navigator 5.4L V8 (KNN57-2575). This system is engineered to increase airflow up to 50% over the stock intake, helping improve horsepower and throttle response. Designed to fit select 5.4L V8 models, this intake replaces the factory air filter and intake housing with a high-flow cotton gauze filter and custom-designed heat shield. It’s washable, reusable, and built for long-term durability and street-legal use in all 50 states.

Features and Specifications:

Vehicle Fitment: Ford F150 (1997-2003), Expedition (1997-2004), Lincoln Navigator (1998-2004)
Engine: 5.4L V8
Air Filter Color: Red
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Round
Included: Mounting Hardware, 6 Clamps, and 2 Couplers
Clamp Material: Stainless Steel
Clamp Style: Regular
Intake Pipe Color / Finish: Black
Intake Pipe Material: High-Density Cross-Linked Polyethylene
CARB EO Number: D-269-48
Estimated Horsepower Gain: 11.04 HP @ 4600 RPM
Replacement Filter: RU-5173
Increased Performance: Boosts horsepower and torque for improved engine output.
HDPE Intake Tube: Roto-molded for durability and efficient airflow.
High-Flow Filter: Direct replacement air filter enhances throttle response and engine sound.
Optimized Airflow: Engineered for high airflow and superior filtration efficiency.
Low Maintenance: Filter requires cleaning only every 100,000 miles under everyday driving.
Easy Installation: Installs in under 60 minutes using basic hand tools.
Lifetime Warranty: Covered by a No-Hassle Lifetime Limited Warranty.
Emissions Legal: 50-state legal for street use.