57-2503 - K&N 57 Series FIPK, Performance Intake Kit direct from K&N

K&N 57-2503
57 Series FIPK > Performance Intake Kit

List Price: $411.02
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K&N Fuel Injection Performance Kits (FIPK^®) contain a high flow K&N air filter with uniquely designed adapters. This creates a radius entry allowing the engine to ingest air with less restriction compared to the factory intake system. FIPK's are street legal in all 50 US states and come with a Million Mile Limited Warranty. K&N air intake systems replace 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. More air means more usable power and acceleration for your car or truck. The filters on these kits are washable and reusable. Most of our intake kits are relatively easy to install using tools commonly available (see installation instructions). [MORE]

Available Information

Installation Instruction Sheet

Dyno Chart - 1994 Ford F150 5.8L - 5.32HP increase

57-2503 Vehicle Applications

Part 57-2503 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 5.32 HP @ 3654 RPM
Replacement Filter: RF-1012
Street Legal In All US States: Yes
TUV Approved (Europe): No
Clamp Style: Mini
Type: Gen I
Intake Pipe Color / Finish: None
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.

Accessories

99-5050 - Filter Care Service Kit - Squeeze

RF-1012 - Replacement Filter

RF-1012DK - Air Filter Wrap

RF-1012DL - Air Filter Wrap

RF-1012DR - Air Filter Wrap

RF-1012DY - Air Filter Wrap

Product Reviews Review part 57-2503

THE FIPK is awesome
2 days ago I purchased and installed your FIPK system in my '93 Ford F-150 4x4 302 V8. What a huge difference, even over the K&N panel filter I had before. I don't have any numbers to give, but the amount of acceleration and power gain is awesome. Along with the custom exhaust I have installed, the ominous throaty sound that I usually only heard from the back, now come from the front as well, making the truck sound like there's a built 460ci under the hood when entering the highway. Many people have taken notice and asked what I've done. I proudly tell them of the quick and simple upgrade and highly recommend they do the same. Too bad this isn't factory installed, standard equipment.
Thanks for a great product,
Doug, Groton, Connecticut

Install on my 2005 Ford F350 6.0 was little over an hour. Biggest issue was the back nut on the back of the KN filter housing below the radiator fluid fill area. Very difficult to get to, but no issues on the install in general. Engine has good response, sound is about the same. Hoping to increase fuel economy but still in the testing process.
Michael, Ringgold, Georgia

I have been using K&N filters since about 1968 starting with my dirt bikes. Use on all my vehs since. I have a 1995 Ford F150 with a 302 and a 1997 Jeep Grand Cher with a 4.0 and both have K&N air filters.
Wm. Wallace Powers, Jr., Woodland Park, Colorado

K&N 57-2503 fits the following:

1995 FORD F350 7.5L V8 F/I - w/o mass air