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K&N 57-2525-2 5.0 out of 5 stars 3 Customer Reviews
57 Series FIPK > Performance Intake Kit

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57-2525-2
 
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The K&N 57-2525-2 FIPK 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 57-2525-2 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 tube accommodates the factory mass air sensors, air temperature sensor, idle air control and PCV lines. The oversized cone shaped 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 the existing factory mounting points and requires 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
57-2525-2 Vehicle Applications
Dyno Chart - 2002 Ford Excursion V8-5.4L - 11.61HP Increase
News Story - Simple Ways to Boost Performance of your Ford F-250 Super Duty


Part 57-2525-2 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 11.61 HP @ 4480 RPM
Replacement Filter: RF-1044
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: 2
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: No
Air Filter Large End Diameter: 7.5 in (191 mm)
Weight: 10.8 lb (4.9 kg)
Product Box Length: 18.25 in (464 mm)
Product Box Width: 18.25 in (464 mm)
Product Box Height: 12.5 in (318 mm)


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


Product Reviews      Review part 57-2525-2

 Awesome product, fast and easy to install, just 30 mins,fits like a glove, better throttle response and improvement on fuel and my pocket book. Made my engine sound more throaty, deep sound, and you can hear it sucking air. Have had it for 3yrs and has made a difference, plus its easy to clean. Love this cold air kit. Highly recommended!!!!!
Modesto Madrid, El Paso, Texas
 I installed this on my 2000 F250 (5.4L) and was impressed with the ease of installation and increased fuel mileage. I saw an increase of 2+ mpg on the freeway. Thanks K&N!
Jason T, Michigan
 I put on an intake system on a 1999 F250 5.4. The instructions were easy to follow, all parts fit perfect. This truck is use to pull a 27 ft. Airstream so when we get back from Florida in Nov. I will comment on performance, but from test drives this truck runs great. What an excellent product.
Scott Horner, South Bend, Indiana