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K&N 57-2537 4.5 out of 5 stars 2 Customer Reviews
57 Series FIPK > Performance Intake Kit

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57-2537
 
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The K&N 57-2537 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 57-2537 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 crank case vent hose. 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, side cutters 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
Available Information
Installation Instruction Sheet
57-2537 Vehicle Applications
Dyno Chart - 2002 Ford Explorer 4.0L - 7.34HP Increase


Part 57-2537 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 7.34 HP @ 4890 RPM
Replacement Filter: RF-1048
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: Yes
Air Filter Height: 6 in (152 mm)
TUV Approved (Europe): No
Air Filter Material: Cotton Gauze
Clamps Included: 6
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: 9.1 lb (4.1 kg)
Product Box Length: 20.25 in (514 mm)
Product Box Width: 12.25 in (311 mm)
Product Box Height: 12.25 in (311 mm)


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


Product Reviews      Review part 57-2537

 Installation was a breeze. Couldn't tell a performance difference until I did 2 over the road trips. Seeing somewhere around an 8 to 10% increase in fuel efficiency. I would recommend, purchase and install.
M.L. Clark, Cleveland, Ohio
 Good performance ! Great job K&N!
Luis howard, Panamá