MM3 & RaceMe Ultra Manuals HERE (Both tuners Use the same manuals for hardware installation)

Make sure you have a charger on the truck with good batteries (clean all terminals etc.) or go buy a new battery if not. Make sure there are no aftermarket accessories on the truck or have their fuses pulled.

BELOW IS FOR MM3 ONLY
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MM3 TUNES ARE PRE LOADED
On your screen navigate to ECM TUNING > ECM > PROGRAM CUSTOM FILE. Then select your desired file and follow the prompts on the screen. *NOTE*: WT = With Transmission Tuning NT = Without Trans Tuning.

GDP CONTACT
877-223-5018
403-795-7063 EXT 1

MONDAY-FRIDAY
support@gdptuning.com
Contact with Pre Order Number found on Card inside MM3 Box and Truck Vin Number.‍

Tuner Hardware Installation Video HERE