K&N Filters Performance Air Intake Kit for Ford Super Duty 5.4L V8 (KNN57-2525-2)
Upgrade your engine with the K&N Filters Performance Air Intake Kit for Ford Super Duty 5.4L V8 (KNN57-2525-2). This 57 Series FIPK intake system is engineered to improve airflow, increasing horsepower and torque. Designed for Ford Super Duty trucks with a 5.4L V8 engine, it replaces the restrictive factory intake with a high-flow intake tube and a washable, reusable cotton gauze filter. The system offers better throttle response, especially under load. It installs easily with basic tools- no cutting or drilling required. Ideal for towing, hauling, and daily driving.
Features and Specifications:
Vehicle Fitment: Ford F-Series Super Duty 5.4L V8
Air Filter Color: Red
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Round
Included: Mounting Hardware, 7 Clamps, and 2 Couplers
Clamp Material: Stainless Steel
Clamp Style: Regular
Alternate Replacement Filter: RF-1044/RU-1044XD
Intake Pipe Color / Finish: Black
Intake Pipe Material: High-Density Cross-Linked Polyethylene
CARB EO Number: D-269-31
Estimated Horsepower Gain: 11.61 HP @ 4480 RPM
Replacement Filter: RU-1044
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.
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: KNN57-2525-2
