DRD does custom tune each truck based on the mods and VIN number.
The Cummins motor is not a one size fits all because of all the different year calibrations that Cummins Inc. has made to the motors over the years.
The RaceME box tunes can cause Turbo Surging and the Trans Tuning is less that desirable.
Get DRD Tuned and you'll be a happy camper!
God bless,
igotacummins
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