K&N 57-2556 Performance Air Intake Kit — Fits 04-08 Ford F-150 V8-5.4L

SKU: KNN57-2556
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Sale price$299.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

Maximize Your Ford F-150's Power with K&N Performance Intake

Upgrade your 2004-2008 Ford F-150 equipped with the V8-5.4L engine with the K&N 57-2556 Performance Air Intake Kit. This system is engineered to significantly increase airflow, delivering a substantial boost in horsepower and torque for enhanced performance. The high-density polyethylene (HDPE) tube is custom-molded to optimize air volume, ensuring your engine receives the cool, dense air necessary for maximum power output and efficiency.

Key Performance Enhancements:

  • Increased Horsepower & Torque: Experience improved acceleration and overall engine responsiveness.
  • High-Flow Reusable Filter: Comes with K&N's washable and reusable High-Flow Air Filter, featuring oiled cotton media for excellent airflow and filtration.
  • Extended Service Intervals: The oversized, conical filter design allows for up to 100,000 miles between filter services under normal highway driving conditions.
  • Engine Heat Shield: A custom heat shield is included to prevent the intake from drawing in hot air from the engine bay, maintaining optimal air density.
  • Easy Installation: Designed for a direct bolt-on fit, this system can typically be installed in under an hour using basic tools.
  • CARB Compliant: This intake system is CARB E.O. D-269-37, making it legal for sale and use in California and other states that adopt CARB standards.

This K&N 57-2556 kit is specifically designed for a wide range of 2004-2008 Ford F-150 models with the V8-5.4L engine, including XL, XLT, FX4, King Ranch, Harley-Davidson Edition, and Limited trims, as well as compatible Lincoln Mark LT models. Installation instructions are provided for a straightforward upgrade. Enhance your truck's performance and sound with this premium K&N air intake system, available at GGCRACING.

Vehicle Fitment

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

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

Maximize Your Ford F-150's Power with K&N Performance Intake

Upgrade your 2004-2008 Ford F-150 equipped with the V8-5.4L engine with the K&N 57-2556 Performance Air Intake Kit. This system is engineered to significantly increase airflow, delivering a substantial boost in horsepower and torque for enhanced performance. The high-density polyethylene (HDPE) tube is custom-molded to optimize air volume, ensuring your engine receives the cool, dense air necessary for maximum power output and efficiency.

Key Performance Enhancements:

  • Increased Horsepower & Torque: Experience improved acceleration and overall engine responsiveness.
  • High-Flow Reusable Filter: Comes with K&N's washable and reusable High-Flow Air Filter, featuring oiled cotton media for excellent airflow and filtration.
  • Extended Service Intervals: The oversized, conical filter design allows for up to 100,000 miles between filter services under normal highway driving conditions.
  • Engine Heat Shield: A custom heat shield is included to prevent the intake from drawing in hot air from the engine bay, maintaining optimal air density.
  • Easy Installation: Designed for a direct bolt-on fit, this system can typically be installed in under an hour using basic tools.
  • CARB Compliant: This intake system is CARB E.O. D-269-37, making it legal for sale and use in California and other states that adopt CARB standards.

This K&N 57-2556 kit is specifically designed for a wide range of 2004-2008 Ford F-150 models with the V8-5.4L engine, including XL, XLT, FX4, King Ranch, Harley-Davidson Edition, and Limited trims, as well as compatible Lincoln Mark LT models. Installation instructions are provided for a straightforward upgrade. Enhance your truck's performance and sound with this premium K&N air intake system, available at GGCRACING.

Vehicle Fitment

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

Product Details

Product Description

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

Maximize Your Ford F-150's Power with K&N Performance Intake

Upgrade your 2004-2008 Ford F-150 equipped with the V8-5.4L engine with the K&N 57-2556 Performance Air Intake Kit. This system is engineered to significantly increase airflow, delivering a substantial boost in horsepower and torque for enhanced performance. The high-density polyethylene (HDPE) tube is custom-molded to optimize air volume, ensuring your engine receives the cool, dense air necessary for maximum power output and efficiency.

Key Performance Enhancements:

  • Increased Horsepower & Torque: Experience improved acceleration and overall engine responsiveness.
  • High-Flow Reusable Filter: Comes with K&N's washable and reusable High-Flow Air Filter, featuring oiled cotton media for excellent airflow and filtration.
  • Extended Service Intervals: The oversized, conical filter design allows for up to 100,000 miles between filter services under normal highway driving conditions.
  • Engine Heat Shield: A custom heat shield is included to prevent the intake from drawing in hot air from the engine bay, maintaining optimal air density.
  • Easy Installation: Designed for a direct bolt-on fit, this system can typically be installed in under an hour using basic tools.
  • CARB Compliant: This intake system is CARB E.O. D-269-37, making it legal for sale and use in California and other states that adopt CARB standards.

This K&N 57-2556 kit is specifically designed for a wide range of 2004-2008 Ford F-150 models with the V8-5.4L engine, including XL, XLT, FX4, King Ranch, Harley-Davidson Edition, and Limited trims, as well as compatible Lincoln Mark LT models. Installation instructions are provided for a straightforward upgrade. Enhance your truck's performance and sound with this premium K&N air intake system, available at GGCRACING.

Vehicle Fitment

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

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