20-23 TCM Tune and HP Tuners credits (HP Tuners MPVI device required for flashing)
Get rid of sluggish shifts, poor shift timing, and utilize all of the power that ECM tuning can add to your stock L5P Duramax.
The latest version v5.1 improves drivability with revised shift scheduling, a modified torque converter clutch (TCC) strategy, and maximum line pressure for firmer shifts with reduced shift delay during part-throttle driving.
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T93 TCM Tuning profiles are as follows:
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- T93STK: Stock TCM calibration with updated operating system to match ECM calibration
- v2.1: Improved shift schedule. Stock TCC strategy. Stock pressure
- v3.1: Improved shift schedule. Modded TCC strategy. Stock pressure
- v4.3: (replaces previous v4.2): Improved shift schedule. Modded TCC strategy. Added line pressure for firmer shifts.
- v5.1: Improved shift schedule. Modded TCC strategy. Maximum line pressure for firmer shifts with less shift delay under part throttle driving.
All TCM tunes maintain factory shift timing, torque limiting and shift defuel models. Shift defuel is is improved in the ECM calibration only and the TCM improvements result in an improved shift feel even with shift defuel active.