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K&N 57-2503 Air Intake

57 Series FIPK / Performance Air Intake System
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57-2503
$295.99 USD
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Product Overview

  • 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
The K&N 57-2503 Air Intake fits some Ford Bronco, Ford F Super Duty, Ford F150, Ford F250, and Ford F350 models. See vehicle applications link for details.
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 K&N FIPK Air Intake Systems]
Estimated Horsepower Gain5.32 HP @ 3654 RPM
Replacement FilterRF-1012
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Clamps Included5
Clamp MaterialStainless Steel
Clamp StyleMini
CARB EO NumberD-269-17
Couplers IncludedNone
TypeGen I
Product Style57 Series FIPK
Air Filter Height9 in (229 mm)
Street Legal In All US StatesYes
TUV Approved (Europe)No
Weight6 lb (2.7 kg)
Product Box Height9.25 in (235 mm)
Product Box Length15.13 in (384 mm)
Product Box Width9.13 in (232 mm)
Mounting Hardware IncludedYes
Warranty1,000,000 Miles/10 Year
Horsepower gains based on similar vehicle dynamometer test. Results will vary.
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

K&N 57-2503 Air Intake Product Reviews

Sunday, April 12, 2015 - Part 57-2503
Very easy to install, gained about 5 hp and immediately felt better acceleration in my 91 Ford F-150.

Kendall
Florida
Friday, January 23, 2015 - Part 57-2503
I was impressed with the difference replacing the stock air filter with the K&N made with my F250 7.5. Now that I have replaced the stock housing with this intake kit I am very excited. The placement of the new housing was super easy. Don't let drilling 3 holes scare you as it is easy. If I can do it anyone can. Just follow the excellent documentation. Can't wait to get the new exhaust to complete the breathing on the system.

Mark Austin
Pine, Arizona
Monday, July 28, 2014 - Part 57-2503
No issue with installation. I feel that I did get a little more HP out of my engine with this modification. Next, will be installing an RV cam to get more HP out of this engine.

Bill M.
San Jose, California