Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
Upgrade your vehicle's airflow with the K&N Engineering 57-2556 Performance Cold Air Intake Kit designed specifically for select Ford F-150 and Expedition models equipped with a V8-5.4L engine. This high-density polyethylene (HDPE) rotationally-molded tube increases the volume of air reaching your engine, resulting in a guaranteed improvement in horsepower and torque. The system includes a washable, reusable High-Flow Air Filter with oiled cotton filter media, which allows for up to 100,000 miles of service under normal highway conditions, reducing maintenance and enhancing performance. The oversized, conical filter design maximizes airflow while ensuring filtration efficiency, making it a reliable upgrade for your vehicle's intake system. A custom heat shield is integrated into the system to protect intake air from high engine bay temperatures, ensuring cooler, denser air reaches your engine for optimal combustion. Installation is straightforward, typically taking less than 90 minutes, making this an accessible upgrade for most DIY enthusiasts. Please note that some models may not be legal for sale or use on pollution-controlled vehicles in California; refer to product specifications for CARB status. Backed by the K&N No-Hassle Lifetime Limited Warranty, this intake system provides long-term performance benefits and peace of mind. Enhance your vehicle's power, efficiency, and sound with this durable and performance-oriented intake upgrade from K&N Engineering.
Features:
Fitment:
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
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
