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2016 - 2020 2.8L Colorado / Canyon LWN Duramax | EFI Live

$450.00 

  • Increase in MPG / HP / TQ

Tune Power Levels

  • Stock Power
  • 30HP
  • 50HP
  • 70HP

How to get authentication code and serial number for license

  • CLICK HERE for instructions off of EFI Live's website