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K&N 77-2557KP Be the first to review!
Intake Kits > Performance Intake Kit

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77-2557KP
 
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Built for performance and show utilizing the highest quality components, the K&N 77 Series High-Flow Performance Air Intake is a free-flowing mandrel-bent aluminum tube induction system designed for Trucks and Sport Utility Vehicles. 77-Series air intakes come with K&N's Million Mile Limited Warranty. K&N intake systems replace 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 vehicle's engine to inhale a larger amount of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The filters on these kits are washable and reusable. Most of our intake kits are relatively easy to install using tools commonly available (see installation instructions). Some 77 Series Air Intakes are not legal for use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website vehicle parts search for specific CARB status.

[More Information on 77 Series Air Intake Systems]
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Free-flowing aluminum tube
  • Replaces entire factory air intake system
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • 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
77-2557KP Vehicle Applications
Dyno Chart - 2004 Ford F150 4.6L - 9.31HP Increase
News Story - Polished Aluminum Air Intake Released for 2004 & 2005 4.6L Ford F-150 Pickup


Part 77-2557KP Product Specifications
Product Style: 77 Series Kits
Estimated Horsepower Gain: 9.31 HP @ 4724 RPM
Replacement Filter: RF-1020
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: See Application Link Below
Air Filter Height: 8 in (203 mm)
TUV Approved (Europe): No
Air Filter Material: Cotton Gauze
Clamps Included: 5
Clamp Material: Stainless Steel
Clamp Style: Regular
Couplers Included: 2
Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
Intake Pipe Color / Finish: Polished
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: 12.7 lb (5.7 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.


Customer Feedback      Be the first to review part 77-2557KP

I went from a Fram Tough Guard air filter to this thinking it would improve my overall horsepower and MPG and boy has it ever! Within the first month my hp has increased by at least 5hp and I'm getting almost 18 mpg! Which is fairly decent for a 5.0 v8 engine. I would recommend this filter to those wanting to get the most out of their ford 1995 F150 pickup!
John, Little Rock, Arkansas
Best Filter On the Market! Put it on my '78 Ford F150 and it helped with performance and fuel economy just as advertised.
Zach, Colorado
I gave this air filter good rating, even though I haven't installed it yet. I know these filter are the best because I use one in my 1989 Ford F150 pickup. The filter has been in the truck 10 years plus and is still like new. I also used one in my old car a 1993 Lincoln Towncar. I bought both filters at the same time. These are the best filters you can buy. If you service the filter like you need to they just keep on going.
Barry Williams, North Carolina