K&N 77-2587KS Air Intake

Intake Kits / Performance Air Intake System
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$275.99 USD
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Product Overview

  • 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)
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty
The K&N 77-2587KS Air Intake fits some Ford Explorer models. See vehicle applications link for details.
The K&N 77-2587KS high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit specific Ford Explorer models. The restrictive factory air filter and air intake housing on your vehicle are replaced by this K&N air intake system. By allowing the engine to inhale more air means more usable power across the RPM range. The chrome topped K&N high-flow air filter is a cone shaped air filter and can be used for up to 100,000 miles before servicing is needed (depending on driving conditions). To keep engine heat at bay a heat shield is included and is installed in the original air box space. The aluminum intake tube has an attractive silver powder-coated finish that’s made to last. The factory inlet air temperature sensor mounts directly onto the intake tube. Engine sound is also enhanced with more aggressive and deeper acoustics during acceleration. 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 77 Series Air Intakes]
Estimated Horsepower Gain11.07 HP @ 5433 RPM
Replacement FilterRF-1048
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Clamps Included5
Clamp MaterialStainless Steel
Clamp StyleRegular
Couplers Included2
Product Style77 Series Kits
Air Filter Height6 in (152 mm)
Intake Pipe Color / FinishSilver
Intake Pipe MaterialAluminum
CARB EO NumberD-269-57
Street Legal In All US StatesSee Application Link Above
TUV Approved (Europe)No
Weight10.4 lb (4.7 kg)
Product Box Height12.5 in (318 mm)
Product Box Length22.25 in (565 mm)
Product Box Width14.25 in (362 mm)
Mounting Hardware IncludedYes
Horsepower gains based on similar vehicle dynamometer test. Results will vary.
WARNING: Cancer and reproductive

K&N 77-2587KS Air Intake Product Reviews

Friday, July 7, 2017 - Part 77-2587KS

Atsuo Watanabe
sanyouonodashihigashitakatoma, Japan
Thursday, January 26, 2017 - Part 77-2587KS
I don't' usually write reviews, but l thought that my comments may help someone else avoid the frustration that l had with this air intake system. It is a great product there is no doubt, but l ordered it for my 2016 Ford Explorer with the 2.3L ecoboost and was disappointed to find that the intake tube had to be modified for the air temperature sensor. I was under the impression by photos, video, and etc. that it was basically swapping out the factory air box with new system and that's it. Unfortunately, this is not the case. The intake tube needs a new 2 hole to accomodate the air temperature sensor and then you have to use a block out plate to cover the existing hole. I could perform this modification without issue, but the finished product look is not what I was looking for. Maybe someday they will make a specific intake tube to fit newer vehicles. On a good note, the customer service did agree to take it back and pay the shipping .