2017-2023 L5P EZ Lynk Tune Files

Northern Tuning L5P EZ-Lynk Tuning (2017–2023 Duramax)

Unlock the full potential of your L5P Duramax with Northern Tuning’s custom ECM calibrations. Our EZ-Lynk support pack provides reliable power, drivability, and direct access to your ECM profiles.

✅ Custom ECM Profiles – tailored specifically for your truck
✅ Single Tune Files – straightforward and dependable calibration
✅ Choose Your Support Level – 4-week limited support or lifetime support with updates and profile access

⚠️ Notes: Switch-On-The-Fly is not currently supported through EZ-Lynk. For SOTF capability, please purchase our HP Tuners device & Tuning found here 

these are tune files Only 

For 2017–2018 model years, the ECM must be unlocked prior to flashing. Models from 2019–2023 do not require unlocking. Please contact us if you are uncertain about your vehicle’s requirements.