L5P EzLynk Tuning

Tuning for your 17-23 L5P Duramax conveniently on EzLynk!
single files and sotf. 

FOR OFFROAD USE ONLY. Check your local laws before purchasing.

2017 and early build date 2018 year model WILL need to be unlocked prior to flashing. 07/18 and alter will unlock and flash via Ezlynk.