11-16 LML TCM Tune File

These are files only! You need an EFILive AutoCal Device to flash these tunes onto any trucks! Unlike most files on the market, CCS is true custom tuning for your Duramax. Just let us know what you're doing with the truck and we will get you tuning that is written specifically for your truck and your usage. This is a single TCM Tune file for your LML or LGH Duramax with the A50 & T87 Allison Transmissions.