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Intake Kits > Performance Intake Kit

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77-2577KTK
 
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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
77-2577KTK Vehicle Applications
Dyno Chart - 2008 Ford F250 5.4L - 13.93HP Increase
News Story - Extremely Popular Ford F250 Super Duty Truck Achieves Nearly 14 More Horsepower With K&N Air Intake


Part 77-2577KTK Product Specifications
Product Style: 77 Series Kits
Estimated Horsepower Gain: 13.93 HP @ 4077 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: Textured Black
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Vacuum Tubing Included: No
Air Filter Large End Diameter: 7.5 in (191 mm)
California Restricted: Not legal for sale or use in California
Weight: 12.2 lb (5.5 kg)
Product Box Length: 35.5 in (902 mm)
Product Box Width: 13.25 in (337 mm)
Product Box Height: 10.5 in (267 mm)


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


Customer Feedback      Be the first to review part 77-2577KTK

Great fit, great price! Just over 1/3 the cost of the disposable Ford racing air filter. Best of all it's MADE IN USA! Thanks K&N for supporting the North American economy. I look forward to buying more of your products.
Eric Unruh, Calgary, Albert, Canada
A great solution to my problem! I bought this for my 1954 NAA Ford tractor to replace the stock oil bath filter which was rusted through. Works like a champ! Thank you K&N for a great product and a great web site to navigate through.
Adam Smith, Redding, California
The instructions and diagrams were the best I have used when assembling anything. It was very easy to install with one possible exception. The two bolts provided for the mounting bracket could have been 1/4 inch or so longer. This would have made the installation a bit easier. Have not driven the truck (V-10 Ford F-350 dually) but my neighbor who borrowed the truck reported 11.75 mpg up from about 9 mpg.
David Jones, Manchester, Michigan