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K&N 57-2556 4.9 out of 5 stars 18 Customer Reviews
57 Series FIPK > Performance Intake Kit

List Price: $507.51
Your Price: $279.99

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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

Product Specifications

Estimated Horsepower Gain:15.46 HP @ 3829 RPM
Air Filter Color:Red
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:Round
Clamp Material:Stainless Steel
Clamp Style:Regular
Clamps Included:7
Couplers Included:3
Intake Pipe Color / Finish:Black
Intake Pipe Ports:All intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter Included:Mass Air Flow Sensor Adapter Included When Required
Part Number:57-2556
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:RF-1020
Street Legal In All US States:Yes
TUV Approved (Europe):No
Type:Gen II
Vacuum Tubing Included:Yes
Weight:14 lb (6.4 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

Product Reviews

 WOW! I have really enjoyed having this product on my Expedition since I had it installed last month. I haven't stopped smiling with the growl and extra power from my 5.4 litre V8! GREAT PRODUCT and I would recommend for everyone.
Jered, Portland, Oregon
 This product was exactly what I was looking for in terms of durability and also gained a few MPG. Plus you can actually hear the motor now. Normal driving sounds the same as before but when you get on the gas you sure can hear that big V8 growl that a lot of people like to hear. Overall very happy with the product that K&N is making here. Just remember to put the MAF in the right direction.
Brett Addington, Elyria, Ohio
 I recently bought the 57-2556 air Intake for my 2007 F150 XLT 4X4 5.4 engine. This is THE BEST INVESTMENT I bought for my Ford pickup...QUICKER take off and for $279.00!!!! I WILL be buying ANOTHER INTAKE for our JEEP when we buy it in 2 years. HIGHLY RECOMMENDED INVESTMENT!!!!! Thank you, keep up the GOOD products K&N.
Rick Buzalewski, Northfield, Ohio
 Just installed this intake yesterday on my 2005 Ford F-150 5.4. Easy install, very noticeable difference in power, response and overall sound of truck. Would recommend this product.
Robert Burgess, Aiken, South Carolina
 Just love it.
John Aspiranti, Fairview, Michigan
 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