This is an add-on service. This cannot be purchased without also purchasing ECM tuning at the same time, 68RFE trucks DO NOT have a separate TCM and it is flashed through a combined PCM. Please put any transmission information in the modifications box when ordering the ECM tune.
ECM Tune for 2022-2024 Cummins
The below SGM bypass cable is REQUIRED to flash 2018+ Cummins trucks:
Pair this TCM tuning with our ECM tuning for shift defuel and torque management control.