K&N 63 Series AirCharger Air Intake System

2001 - 2004 6.6L GMC Sierra / Chevy Silverado

by K&N
SKU NWD-63-2597


  • Guaranteed horsepower gain
  • Designed to improve throttle response and engine sound
  • Free-flowing high density polyethylene 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
  • K&N Million Mile Limited Warranty
  • Features
  • Videos
  • Instructions
  • Vehicle Fitment

K&N air 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 factory air filter assembly.

More air means more usable power and acceleration throughout the engine’s RPM range.

The 63-2597 air intake comes with a K&N high-flow air filter and a heat shield that installs into the previous air box space. This allows cooler, denser air to be directed through a custom molded air intake tube into the engine’s throttle body for a guaranteed power gain.

The oversized 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 using commonly available tools.

NOTE: This air intake cannot be sold in California.

This product is not available for sale in the state of California.



Ford F250/F350/F450

V8 6.7L Powerstroke


Ford F250/F350/F450/F550

V8 6.7L Powerstroke