AMDP 2017-2023 L5P Duramax 6.6L HP Tuners Transmission Tuning

MUST HAVE AN UNLOCKED T87A (17-19) OR T93 (20-23) TCM TO LOAD CUSTOM TUNING

2017-2019 T87A TCM CAN BE UNLOCKED THROUGH OBD

2020-2023 T93 IS REQUIRED TO BE SWAPPED WITH AN UNLOCKED TCM OR THE FACTORY TCM NEEDS TO BE SHIPPED TO HP TUNERS DIRECTLY, OR YOU MAY ALSO USE THE NEWLY RELEASED HP TUNERS T93 UNLOCK TOOL WHICH ALLOWS YOU TO UNLOCK THE TCM AT HOME PRIOR TO TUNE FLASHING. 

ALL TUNING IS VIN LOCKED AND NON-REFUNDABLE.