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K&N 57-2556 4.9 out of 5 stars 13 Customer Reviews
57 Series FIPK > Performance Intake Kit

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57-2556
 
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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.

[More Information on FIPK Air Intake Systems]
  • 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
Available Information
Installation Instruction Sheet
57-2556 Vehicle Applications
Dyno Chart - 2005 Ford F150 5.4L - 15.46HP Increase
Video Installation Video
News Story - Simple Performance Upgrades for Ford F-150 Pickup Trucks
News Story - Performance Parts for the Ford Expedition Add Power & Protection
News Story - K&N 57-Series FIPK® Air Intake Adds Estimated 15 Horsepower to 2004-2008 Ford F-150 5.4L


Part 57-2556 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 15.46 HP @ 3829 RPM
Replacement Filter: RF-1020
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: Yes
Air Filter Height: 8 in (203 mm)
TUV Approved (Europe): No
Air Filter Material: Cotton Gauze
Clamps Included: 7
Clamp Material: Stainless Steel
Clamp Style: Regular
Couplers Included: 3
Type: Gen II
Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
Intake Pipe Color / Finish: Black
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Vacuum Tubing Included: Yes
Air Filter Large End Diameter: 7.5 in (191 mm)
Weight: 14 lb (6.4 kg)
Product Box Length: 22.25 in (565 mm)
Product Box Width: 14.25 in (362 mm)
Product Box Height: 12.5 in (318 mm)


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


Product Reviews    See all reviews!  Review part 57-2556

 I installed this on my 05 F150 , Immediately noticed power gain and has a nice beat when accelerating also noticed about 8 miles more from a full tank of gas, not bad. Was easy to install, Took me about an hour and looks very cool and well made.
Hassan Mulafer, California
 Easy install. Truck growls a lil louder. Increased power and mpg's. Perfect!
Jordan, Hawaii
 Definitely worth the money...works great and looks and sounds cool. Thanks again.
Colby, Washington