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K&N 57-2540 5.0 out of 5 stars 2 Customer Reviews
57 Series FIPK > Performance Intake Kit

 List Price: $527.07
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57-2540
 
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The K&N 57-2540 FIPK air intake system replaces the restrictive factory air filter and air intake. 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 57-2540 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 sensor and air temperature sensor. 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 existing factory mounting points. The tools needed are a screwdriver, a ratchet set and several wrenches. 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)
  • Easy to install, usually in 90 minutes or less
  • Free-flowing high density polyethylene tube
  • Replaces entire factory air intake system
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty


Product Specifications 
Estimated Horsepower Gain:6.62 HP @ 5000 RPM
Air Filter Color:Red
Air Filter Height:6.5 in (165 mm)
Air Filter Large End Diameter:6.5 in (165 mm)
Air Filter Material:Cotton Gauze
Air Filter Outlet Shape:Round
Clamp Material:Stainless Steel
Clamp Style:Regular
Clamps Included:6
Couplers Included:2
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:57-2540
Product Box Height:12.25 in (311 mm)
Product Box Length:20.25 in (514 mm)
Product Box Width:12.25 in (311 mm)
Product Style:57 Series FIPK
Replacement Filter:RF-1037
Street Legal In All US States:Yes
TUV Approved (Europe):No
Type:Gen II
Vacuum Tubing Included:No
Weight:6.9 lb (3.1 kg)

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


Product Reviews      Review part 57-2540

  Hello all @ KN,

I just wanted to take a little time to contact KN and say thank you for such a great product. Since buying the complete air intake system I have seen a huge difference in the performance of my 1999 Ford Ranger 4.0 Prerunner. I will always use the kn product in the future with all of my vehicles now that I have seen how a KN filter helps the performance of my Ranger. I will also highly recommend it to anyone who will be looking for a quality air filter going forward.
Willie M, Murrieta, California
 I wish I'd put the KN air intake system on my 2001 Ford Ranger 11 years ago.  Although Ive always liked the truck, I'd always been disappointed in the 2.5 liter's throttle response.  Now, with the air intake system installed, my truck actually responds to the throttle like it's supposed to, with no dead spots at any time.  I can't recommend KN highly enough. Thank you.
Victor, Augusta, Georgia