Tuning available!

[gemarsh]

Duramaxtuner just dropped a video on their ecm/tcm tuning from home!

 

[BoostN]

A bit pricey that's for sure, but it's great to have more options.
Link: https://duramaxtuner.com/diesel-tuning/2019-2021-3-0l-lm2-duramax-remote-ecm-tuning-package-1.html