K&N 57-2556 Performance Cold Air Intake Kit for Ford F-150 and Expedition 5.4L V8

A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 90 minutes. Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle. K&N's roto-molded cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the K&N No-Hassle Lifetime Limited Warranty. Associated products: RF-1020DK Air Filter Wrap, RF-1020DL Air Filter Wrap, RF-1020DR Air Filter Wrap, RU-1020 Universal Clamp-On Air Filter, 99-5000 Filter Care Service Kit Aerosol

• K&N Million Mile Limited Warranty
• Will not void vehicle warranty

Upgrade your engine’s airflow with the K&N 57-2556 Performance Cold Air Intake Kit, engineered for select Ford F-150 and Ford Expedition models equipped with the 5.4L V8 engine. The system uses a high-density polyethylene rotationally molded intake tube to help increase airflow volume to the engine, supporting improved horsepower and torque performance.

The kit includes a washable and reusable K&N High-Flow Air Filter with oiled cotton filter media. Its oversized conical design can provide service intervals of up to 100,000 miles under normal highway driving conditions. A custom heat shield helps reduce exposure to hot engine-bay air, while the intake is designed for a straightforward installation that can typically be completed in less than 90 minutes using common hand tools.

K&N Engineering backs this intake system with its Million Mile Limited Warranty and No-Hassle Lifetime Limited Warranty. The product is EPA compliant and carries California Air Resources Board Executive Order D-269-37 for applicable vehicle applications. California emissions regulations may vary by vehicle and location, so verify approval before installation. This product may contain chemicals identified under California Proposition 65.

Fitment includes select 2004–2008 Ford F-150 models and select 2005 Ford Expedition models with the 5.4L V8 engine. Always confirm the vehicle year, engine configuration, emissions equipment, and application-specific fitment before ordering.

What's Included: Rotationally molded HDPE intake tube, washable and reusable K&N high-flow air filter, custom heat shield, clamps, couplers, and installation hardware.

Technical Data: Brand: K&N Engineering; Part Number: 57-2556; Part Type: Automotive cold air intake system; Filter Media: Oiled cotton; Filter Service Interval: Up to 100,000 miles under normal highway use; Warranty: Million Mile Limited Warranty; Emissions Status: EPA compliant and CARB EO D-269-37.

Features:

• High-Flow Air Intake: High-density polyethylene rotationally molded tubing helps increase airflow volume to support improved engine horsepower and torque.
• Reusable Cotton Filter: Oversized conical oiled cotton filter media is washable, reusable, and designed for extended service intervals.
• Engine Bay Heat Protection: Custom heat shield helps isolate incoming air from high-temperature engine-bay air.
• Straightforward Installation: Complete intake system is designed for installation in typically less than 90 minutes using common hand tools.

Fitments:
2004 Ford F-150 FX4
2004 Ford F-150 Lariat
2004 Ford F-150 XL
2004 Ford F-150 XLT
2005 Ford Expedition Eddie Bauer
2005 Ford Expedition Limited
2005 Ford Expedition XLS
2005 Ford Expedition XLT
2005 Ford F-150 FX4
2005 Ford F-150 King Ranch
2005 Ford F-150 Lariat
2005 Ford F-150 XL
2005 Ford F-150 XLT
2006 Ford F-150 FX4
2006 Ford F-150 Harley-Davidson Edition
2006 Ford F-150 King Ranch
2006 Ford F-150 Lariat
2006 Ford F-150 XL
2006 Ford F-150 XLT
2006 Lincoln Mark LT Base
2007 Ford F-150 FX2
2007 Ford F-150 FX4
2007 Ford F-150 Harley-Davidson Edition
2007 Ford F-150 King Ranch
2007 Ford F-150 Lariat
2007 Ford F-150 XL
2007 Ford F-150 XLT
2007 Lincoln Mark LT Base
2008 Ford F-150 FX2
2008 Ford F-150 FX4
2008 Ford F-150 Harley-Davidson Edition
2008 Ford F-150 King Ranch
2008 Ford F-150 Lariat
2008 Ford F-150 Limited
2008 Ford F-150 THE 60TH ANNIVERSARY EDITION
2008 Ford F-150 XL
2008 Ford F-150 XLT
2008 Lincoln Mark LT Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Eo Number: D-269-37
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1