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K&N Performance Intake Kit for 04-08 FORD/LINCOLN F150/MARK LT, V8-5.4L 57-2556

K&N Performance Intake Kit for 04-08 FORD/LINCOLN F150/MARK LT, V8-5.4L 57-2556

    Guaranteed to increase horsepower

  • Designed to improve throttle response and engine sound
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Replaces entire factory air intake system
  • Free-flowing high density polyethylene tube
  • Easy to install, usually in 90 minutes or less
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty

The K&N 57 Series FIPK 57-2556 air intake system replaces your vehicle’s restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The 57-2556 air intake comes with a chrome topped K&N high-flow air filter and a heat shield that installs into the previous air box space. Air is directed through an aerodynamically engineered intake tube into the engine’s throttle body for a guaranteed power gain. The oversized air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using commonly available tools. K&N 57 Series FIPK's are street legal in all 50 US states and come with K&N's Million Mile Limited Warranty. 

Product Specifications:

Estimated Horsepower Gain

15.46 HP @ 3829 RPM

Air Filter Color


Air Filter Height

8 in (203 mm)

Air Filter Large End Diameter

7.5 in (191 mm)

Air Filter Material

Cotton Gauze

Air Filter Outlet Shape


CARB EO Number


Clamp Material

Stainless Steel

Clamp Style


Clamps Included


Couplers Included


Intake Pipe Color / Finish


Intake Pipe Material

High-Density   Polyethylene

Product Box Height

12.5 in (318 mm)

Product Box Length

22.25 in (565 mm)

Product Box Width

14.25 in (362 mm)

Product Style

57 Series FIPK

Replacement   Filter


Street Legal In All US States


TUV Approved (Europe)



Gen II


14 lb (6.4 kg)

Horsepower gains based on similar vehicle dynamometer test. Results will vary.

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