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Introducing the newest addition to the K&N performance air intake catalog: the 77 Series High-Flow Performance Polished Aluminum Cold Air Intake System with Red Cotton Gauze Filter. The estimated horsepower gain is 19.39 hp. It comes with 5 nylon clamps and 2 couplers. The mandrel-bent intake pipe is made of premium-grade aluminum alloy.

All mounting hardware is included with the kit. The installation of the intake system doesn’t void the vehicle warranty. It can be performed using simple hand tools in less than 90 minutes or so.

K&N® - 77 Series High-Flow Performance Aluminum Polished Cold Air Intake System with Red Filter

Fits: 2020-2021 Ford F-250/F-350


Air Intake
5 Stainless Steel Worm Gear Clamps
2 Coupler


  • Series: 77 Series High-Flow Performance
  • Filter Shape: Round
  • Filter Color: Red
  • Tube Finish: Polished
  • System Type: Cold Air Intakes
  • Material: Aluminum
  • Air Filter Material: Cotton Gauze


  • 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/10 Year Limited Warranty

Have a peek here for more details about the new K&N product release.
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