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K&N 77-2575KS Air Intake

Intake Kits > Performance Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   25 Customer Reviews
  • 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
The K&N 77-2575KS Air Intake fits some Ford Explorer models. See vehicle applications link for details.
The K&N 77-2575KS high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Ford Explorer 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 77-2575KS 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 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, crank case vent hose and a replacement silicone EVAP vent line. The tools needed for installation are a screwdriver, pliers, ratchet set 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]

Product Specifications

Estimated Horsepower Gain13.55 HP @ 5500 RPM
Replacement FilterRF-1048
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Clamps Included5
Clamp MaterialStainless Steel
Clamp StyleRegular
Couplers Included1
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
Weight10.5 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.

K&N 77-2575KS Air Intake Product Reviews

Tuesday, January 16, 2018 - Part 77-2575KS
I love it.

Yldefonso Gonzales
San Marcos, California
Thursday, September 21, 2017 - Part 77-2575KS
Really wakes this truck up. Good instructions. Great product. Thanks!

Mike Goodman
Dayton, Ohio
Friday, April 21, 2017 - Part 77-2575KS
Very satisfied with the cold air filter. I have used them before.

Donald Robertshaw
Amsterdam, New York
Wednesday, April 12, 2017 - Part 77-2575KS
Absolutely great! A definite HP boost, gives the vehicle a little muscle sound as well. Decals look great on the side windows. I had a K&N filter on my F150 it was a good purchase. I went to Daytona and did the Richard Petty Experience where you drive one of the cars around the track....MY car No.28 K&N, no kidding, I was doing 157mph average around the money I ever wasted! LOL!

Tom Grinels
Port St. Lucie, Florida
Tuesday, March 21, 2017 - Part 77-2575KS
I typically do at least some performance work to all of my vehicles and intake systems are usually some of the first on the list since they're relatively cheap and easy to install. I must admit this particular system did much more than expected; noticeable power increase especially at higher rpms, improved throddle response, and the biggest difference of all, the SOUND! The truck now sounds much more aggressive and like that of a powerful V8, the deep rubble is music to my ears and it roars throughout the powerband when the gas pedal is floored. Another added bonus is that under regular driving conditions (not having a heavy foot) the truck is still quiet. Overall this has definitely increased the fun factor of driving my truck and I find it quite hard to resist giving it a little extra gas just to hear the deep throaty rumble it now makes. Easy install, took 30 minutes.

Brenon Bodkins
Virginia Beach, Virginia
Friday, February 24, 2017 - Part 77-2575KS
As all K&N kits, this one was well engineered and straightforward to install. My only minor complaint is that the intake noise was a bit more than I had expected.

Roger Burnett
Blacksburg, Virginia
Saturday, February 11, 2017 - Part 77-2575KS
I installed this air intake on my 2014 explorer about 2 months ago, after it spewed a couple codes that indicated my fuel mixture was to rich. The installation didn't take much more than an hour and the instructions were thorough and straight forward. The performance, real or imagined, is incredible. The SUV seems to have much more power and the sound makes it seem even more powerful. I hit the gas pretty hard to test the acceleration and it hasn't thrown any OBD codes anymore. I will definitely purchase K&N air intakes for any future new cars that I buy. Great product

John V.
Bella Vista, Arkansas