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K&N 77-2585KS 5.0 out of 5 stars 4 Customer Reviews
Intake Kits > Performance Intake Kit

List Price: $495.72
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77-2585KS
 
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The K&N 77-2585KS high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Ford F150 models. The restrictive factory air filter and air intake housing on your vehicle are replaced by this K&N air intake system which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow. The improved air flow allows your engine to inhale a larger amount of air than it would from the stock air intake. More air means more usable power and acceleration throughout your engine’s RPM range. The 77-2585KS air intake comes with a chrome topped K&N high-flow air filter and a heat shield that installs onto the lower airbox. Air is directed through the intake tube into the engine’s throttle body for a guaranteed power gain. The intake tube has an attractive silver powder-coat finish that's made to last and it accommodates the factory mass air sensor, EVAP vent line 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, pliers and several wrenches. Some K&N 77 series air intakes are not legal for sale or 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 for vehicle applications and specific CARB status for each vehicle and air intake.

[More Information on K&N 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

Product Specifications

Estimated Horsepower Gain11.91 HP @ 5536 RPM
Air Filter ColorRed
Air Filter Height6 in (152 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included5
Couplers Included2
Intake Pipe Color / FinishSilver
Intake Pipe PortsAll intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter IncludedMass Air Flow Sensor Adapter Included When Required
Product Box Height12.5 in (318 mm)
Product Box Length22.25 in (565 mm)
Product Box Width14.25 in (362 mm)
Product Style77 Series Kits
Replacement FilterRC-5173
Street Legal In All US States No
TUV Approved (Europe)No
Vacuum Tubing IncludedYes
Weight11 lb (5 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.


Product Reviews


  Seems to be what I wanted
Darrin Duckworth Conover North Carolina
  I recently added a K&N Cold Air Intake and a Magnaflow Cat-Back exhaust to my 2013 Ford F-150 with the 3.7 engine. I'm very happy with the quality of the intake, and the resulting performance increase. The truck was missing some low end performance and had a little hesitation during acceleration. Both those issues have improved substantially.
Jim Kirwan Miami, Florida
  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