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K&N 77-2585KS 5.0 out of 5 stars 2 Customer Reviews
Intake Kits > Performance Intake Kit

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77-2585KS
 
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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). This 77 Series Air Intake cannot be sold in California. It is not legal for use in California or other states adopting California emission standards. Check the K&N catalog or website vehicle parts search for specific CARB status.

[More Information on 77 Series Air Intakes]
  • 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
77-2585KS Vehicle Applications
Dyno Chart - 2012 Ford F150 3.7L - 11.91HP Increase
News Story - 2012 & 2013 Ford F150 3.7L Owners Can Increase Horsepower with K&N Air Intake System


Part 77-2585KS Product Specifications
Product Style: 77 Series Kits
Estimated Horsepower Gain: 11.91 HP @ 5536 RPM
Replacement Filter: RC-5173
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: No
Air Filter Height: 6 in (152 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: Silver
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Vacuum Tubing Included: Yes
California Restricted: Not legal for sale or use in California
Weight: 11 lb (5 kg)
Product Box Length: 22.25 in (565 mm)
Product Box Width: 14.25 in (362 mm)
Product Box Height: 12.5 in (318 mm)


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


Product Reviews      Review part 77-2585KS

 Had a mechanic friend put this in for me on my 2013 F-150. It took him just over an hour. Instantly saw better gas mileage. Went from averaging 15mpg to 18mpg which is the main reason I got it! Sounds good when you rev it too. Hard to gauge the horsepower increase but I'm sure it's there.
Travis, Florida
 Love this product.
Except for a shipping problem,left out attaching parts,I would recommend this product to anyone looking for better engine performance.
I picked up 2 MPG right off the bat.
Love the more muscular sound of the engine.
Lindo Rossi, Pennsylvania