2017-2023 Duramax HP Tuners CCS TCM Tuning (CCS-HP Tuners-TCM)

Fits

Note: This is an upgrade to your existing CCS Tuning. This does NOT include the physical TCM. This tune requires 4 credits.

The CCS TCM Tuning is for those looking to upgrade their existing tuning package from Coopers Custom Solutions by adding Transmission Tuning. The TCM Tuning will dramatically increase the drivability of your Allison by modifying and adjusting your shift points, line pressure, and increasing the holding capacity.

T87A TCM Update: The T87A Transmission Control Module no longer requires an upgrade service to enable tuning and diagnostics. It can now be licensed and tuned directly over OBDII. Applies to 2017-2019 GM 2500/3500 trucks with the 6-speed Allison transmission.

T93A TCM Update: The T93A Transmission Control Module no longer requires an upgrade service to enable tuning and diagnostics. It can now be licensed and tuned directly over OBDII. Applies to 2019-2023 GM 2500/3500 trucks with the 10-speed transmission.

Don't see your question? Ask us anything about this product.

• ?

  do i need to send in a stock file for this tcm tune

  We need a read of the TCM module.

• ?

  if my tcm is already unlocked to i have to buy your tcm to exchange or do you just send the files for me to put on my existing tcm?

  If your TCM is already unlocked for and you're using the MPVI2/MPVI3, you do not need to buy a TCM exchange. CCS can provide the tune files for your existing unlocked TCM, which you can upload using your MPVI2/MPVI3 device.

• ?

  Do I need to have the TCM unlocked as well?

  Yes.