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K&N 57-2574 4.0 out of 5 stars 1 Customer Review
57 Series FIPK > Performance Intake Kit

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57-2574
 
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The K&N 57-2574 FIPK air intake system replaces the restrictive factory air filter and air intake housing in some Ford F150 models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your F150’s 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 57-2574 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 the existing factory mounting points 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
  • Free-flowing high density polyethylene tube
  • 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
57-2574 Vehicle Applications
Dyno Chart - 2007 Ford F150 4.6L - 9.88HP Increase
News Story - 2007 & 2008 Ford F-150 4.6L Gains Estimated 9.8 Horsepower with K&N Performance Air Intake System


Part 57-2574 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 9.88 HP @ 4200 RPM
Replacement Filter: RF-1041
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: Yes
Air Filter Height: 7.5 in (191 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: Yes
Air Filter Large End Diameter: 7.5 in (191 mm)
Weight: 11.8 lb (5.4 kg)
Product Box Length: 18.25 in (464 mm)
Product Box Width: 18.25 in (464 mm)
Product Box Height: 12.5 in (318 mm)


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


Product Reviews      Review part 57-2574

 It's awesome!! One thing I don't like is the rubber mounting plugs they don't fit quite right. But all in all it's perfect.
Tyler Vinci, Burbank, California