HPTuners
GM Unlocked T87A TCMs
GM Unlocked T87A TCMs
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You can now purchase New GM T87A TCMs for your 2017+ GM vehicle equipped with the 10-Speed and 8-Speed transmissions directly from ZackTuned that are already unlocked and ready for tuning. Simply install your new ZackTuned TCM, and you are ready to tune.
Supported T87A TCM Serv# 24279973 & 24289543
What are credits?
What are credits?
ZackTuned RTD+ uses a credit-based licensing system. Credits are used as currency to purchase licenses for a vehicle's different Electronic control modules. Licensing a module gives you the ability to tune it.
The number of credits necessary to buy a license varies depending on the car. Many vehicles are two credits for licensing the ECM/PCM and may have additional options such as a TCM, FICM, or CCM.
You can find a complete list of supported vehicles and credit costs on our supported vehicle page.
