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K&N 77-2570KTK Air Intake

Intake Kits > Performance Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   9 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 77-2570KTK Air Intake fits some Ford E150, Ford E150 Club Wagon, Ford E150 Econoline, Ford E150 Econoline Club Wagon, Ford E150 Wagon, Ford E250, Ford E250 Club Wagon, Ford E250 Econoline, Ford E350 Club Wagon, Ford E350 Cutaway, Ford E350 Econoline, Ford E350 Econoline Club Wagon, Ford E350 Super Duty, Ford E350 Wagon, Ford E450 Cutaway, Ford E450 Econoline Super Duty, Ford E450 Motorhome, Ford E450 Super Duty, Ford E550 Econoline Super Duty, Ford E550 Motorhome, and Ford E550 Super Duty models. See vehicle applications link for details.
The K&N 77-2570KTK high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system. 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 77-2570KTK 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 and connects up to the factory fresh air scoop. Air is directed through the intake tube into the engine’s throttle body for a guaranteed power gain. The intake tube has an attractive textured black powder-coat finish that's made to last and it accommodates the factory mass air sensor and air temperature sensor. 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 ratchet set and an Allen wrench. 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 Gain17.48 HP @ 4101 RPM
Air Filter ColorRed
Air Filter Height9 in (229 mm)
Air Filter Large End Diameter7.5 in (191 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
CARB EO NumberD-269-48
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included3
Couplers Included1
FinishTextured Black
Intake Pipe Color / FinishTextured Black
Intake Pipe MaterialAluminum
Product Box Height14.5 in (368 mm)
Product Box Length24.1 in (612 mm)
Product Box Width15.5 in (394 mm)
Product Style77 Series Kits
Replacement FilterRC-5046
Street Legal In All US StatesSee Application Link Above
TUV Approved (Europe)No
Weight14.3 lb (6.5 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N 77-2570KTK Air Intake Product Reviews

Monday, November 21, 2016 - Part 77-2570KTK
Great product. Just got back from 1200 mile trip and preformed as advertised. 5 STAR!

Jerry Hubbard
Escondido, California
Thursday, September 8, 2016 - Part 77-2570KTK
Although the initial package was missing parts, a replacement parts bag was quickly mailed. The instructions were accurate. The fit and design were perfect. Overall superb design. I would not hesitate to order more products.

Dr. Shawn D. Kosnik
Sylva, North Carolina
Thursday, September 1, 2016 - Part 77-2570KTK
Just installed today. The only hitch was a Ford problem and nothing to do with K&N. The 77-2570KTK kit installed without any problems. Too early to judge performance enhancement. My one fear of the product increasing engine roar was unfounded. I am anticipating favorable performance improvement on my 21' Motorhome with a V10 6.8L engine. Would purchase again.

Douglas Potts
San Diego, California
Monday, June 6, 2016 - Part 77-2570KTK
Installed on a 2000 E350 5.4L V-8. Seemed easy enough for me to install. Took me about 2.5 hours. Quality and fit and finish great. Engine feels more powerful. Sure sounds like a hot rod when you punch the accelerator.

Steven Haskell
Troy, Michigan
Tuesday, March 22, 2016 - Part 77-2570KTK
Super easy to install. 90 mins tops with taking my time. Engine sound is nice and its got some extra get up.

Wednesday, May 27, 2015 - Part 77-2570KTK
Easy to install, sounds great, noticeable power increase

Friday, May 15, 2015 - Part 77-2570KTK
Thanks for an outstanding product. The package arrived timely and well packaged. The instructions were well written and easy to understand. The product is well constructed and fits as advertised without any modifications necessary. I do say that when under load there is a noticeable increase in intake volume. This should be acceptable to most owners. Relieving this engine of the hugely restrictive airbox is a definite plus. I would recommend this system to Ford RV owners as a worthwhile modification.

Larry Erwin
Modesto, California