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K&N 57-2549 4.0 out of 5 stars 1 Customer Review
57 Series FIPK > Performance Intake Kit

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57-2549
 
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The K&N 57-2549 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 57-2549 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, idle air and crank case vent lines. 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. The tools needed are a screw driver, ratchet set and several wrench. 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
57-2549 Vehicle Applications
Dyno Chart - 2003 Ford Lightning 5.4L- 15.63HP Increase
News Story - Simple Performance Upgrades for Ford F-150 Pickup Trucks
News Story - K&N 57 Series FIPK® Intakes Add up to 15 More HP To The Supercharged Ford Lightning and H-D F-150s


Part 57-2549 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 15.63 HP @ 5162 RPM
Replacement Filter: RC-5046
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: Yes
Air Filter Height: 9 in (229 mm)
TUV Approved (Europe): No
Air Filter Material: Cotton Gauze
Clamps Included: 5
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: 10.5 lb (4.8 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 57-2549

 Instructions clear and good. But the nipple that screws into the air intake would not fit, called your help line they sent replacement part. No luck same fitting. Seems that air intake tube was manufactured with incorrect thread. $25.00 and a new thread chaser ( 1 time use ) problem fixed. Might be a good idea to check remaining stock. I realize that there are not many 2004 Ford Lightnings left to equip. Performance benifited. Gas mileage I don't know. When you mash the skinny peddle to much it doesnt help. Truck is one of the last one hundred made and I am trying to wear it out odometer shows 8500 mi. Overall I am quite happy with your products I also have your intakes on My 04 Expedition and 04 F250 6.0.
Lawrence Smith, Aurora, Colorado