K&N Filters FIPK Air Intake Kit for Expedition 5.4L/4.6L V8 (KNN57-2538)

The K&N Filters FIPK Air Intake Kit for Expedition 5.4L/4.6L V8 (KNN57-2538) is engineered to boost horsepower and throttle response for 2003-2004 Ford Expedition models equipped with 4.6L or 5.4L V8 engines. This high-flow intake system replaces the factory air filter and air intake housing with a free-flowing mandrel-bent aluminum intake tube and oversized conical air filter. Designed for better engine sound and improved airflow, this K&N system requires no ECU tuning and comes with a washable, reusable filter. Ideal for performance enthusiasts looking to upgrade their SUV’s intake system without compromising engine protection.

Features and Specifications:

• Vehicle Fitment: 2003-2004 Ford Expedition V8 4.6L / 5.4L.
• 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-269-28
• Estimated Horsepower: 10.15 HP @ 4618 RPM
• 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.
• Warranty Safe: Will not void vehicle warranty.
• Emissions Legal: 50-state legal for street use.