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K&N 57-2503 5.0 out of 5 stars 3 Customer Reviews
57 Series FIPK > Performance Intake Kit

 List Price: $443.90
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57-2503
 
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The K&N 57-2503 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 57-2503 air intake comes with a vent hose and chrome topped K&N high-flow air filter that mounts in the previous air box space. Air is directed through dual intake tubes that lead into the engine’s throttle body for a guaranteed power gain. The oversized, oval tapered cone-shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake usually installs in about 90 minutes 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
  • 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
57-2503 Vehicle Applications
Dyno Chart - 1994 Ford F150 5.8L - 5.32HP Increase


Part 57-2503 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 5.32 HP @ 3654 RPM
Replacement Filter: RF-1012
Air Filter Color: Red
Air Filter Outlet Shape: Not Flanged
Street Legal In All US States: Yes
Air Filter Height: 9 in (229 mm)
TUV Approved (Europe): No
Air Filter Material: Cotton Gauze
Clamps Included: 5
Clamp Material: Stainless Steel
Clamp Style: Mini
Type: Gen I
Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
Intake Pipe Color / Finish: None
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Vacuum Tubing Included: Yes
Weight: 6 lb (2.7 kg)
Product Box Length: 15.13 in (384 mm)
Product Box Width: 9.13 in (232 mm)
Product Box Height: 9.25 in (235 mm)


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


Product Reviews      Review part 57-2503

 Easy to install. Instant improvement in response to acceleration. Improvement in gas mileage.
Paul W. Cackowski, Johnstown, Colorado
 Great product! Not only can I feel the difference, I can hear the difference as well! Easy and quick to install. I run K&N on all my trucks!
Bill Alexander, Kapaa, Hawaii
 The best investment I have made to two of my trucks. Added three miles to the gallon on my 351w bronco and almost two to my 460 f-250. Easy to install and adds some extra power by removing air restriction. Once again very good product.
James, Colorado