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 TCM CAN BE UNLOCKED THROUGH OBD 

ALL TUNING IS VIN LOCKED AND NON-REFUNDABLE.