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Bully Dog GT Platinum Diesel Tuner 40420 Cummins/Duramax/PowerStroke

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The GT monitors and displays over fifteen different vehicle parameters (PIDs) on its 2.4"" color screen. It also includes the all new Driving Coach feature which teaches end users to maximize their vehicles fuel economy potential. The GT performs vehicle diagnostics by reading and erasing diagnostic trouble codes; this level of vehicle transparency isn't offered by any OEM or by any other aftermarket product.

The GT Platinum also supports custom tuning for Powerstrokes! But what is the difference between custom tuning and Bully Dog's preloaded tunes?

Bully Dog's pre-loaded tunes are designed for stock or lightly modified vehicles with modifications such as cold air kits, exhaust systems, or gear ratio changes. Unfortunately, as you build your vehicle with more complex modifications such as larger turbos, bigger injectors etc; the pre-loaded tunes are simply not designed to work with these heavier modifications and a ""custom tune"" is required.

Custom Tunes are created by one of Bully Dog / SCT's custom tuning dealers and are specifically designed for your vehicle and its modifications. Custom Tuning dealers have complete control of your vehicles PCM using the Derive Advantage Custom Tuning software and will optimize your vehicles performance for simple add-ons such as cold air kits or for high horsepower modifications such as turbo kits and larger injectors.

Triple Dog GT Diesel Tuning Features:

Power Settings:
  • Economy/ Tow Tune 50+ horsepower
  • Performance Tune 75+ horsepower
  • Extreme Tune 100+ horsepower/200lbs.-ft torque
Other Features:
  • Safety Defueling
  • Download Features (where applicable)
  • Speed Limiter
  • Rev Limiter
  • Calibrate Speedometer
  • Transmission Tuning
  • Custom Tuning (Powerstroke Only)
Vehicle Options (where applicable)
  • Seat Belt Reminder Chime
  • Auto Door Lock
Performance Gauge Functions:
  • Real Time Fuel economy
  • Average Fuel Economy
  • Trip Fuel economy
  • Load %
  • Coolant temperature
  • Fuel rail pressure (diesel vehicles)
  • Manifold absolute pressure
  • Engine RPM
  • Speed
  • Timing position
  • Air intake temperature
  • Mass Air Flow (grams/sec.)
  • Throttle position
  • Fuel level
  • Battery voltage
  • Ambient air temperature
  • Transmission temperature
  • Pyrometer #1 & 2 optional (diesel vehicles)
  • Boost (diesel vehicles)
  • IPW: injection pulse Width (diesel vehicles)
  • Barometer (diesel vehicles)
  • Oil temperature (diesel vehicles)
  • ICP: injection control pressure (diesel vehicles)

Additional Information
Also included is a performance testing feature designed to test a vehicles performance capability on the drag strip. Couple this with the free PC analysis software and users can also determine vehicle horsepower. The GT does it all and it works on most late model diesel pickups including Dodge, Ford and GM.

Owners of the 6.7L Ford PowerStroke, the Bully Dog GT has proven to provide MASSIVE power gains, all while maintaining all of the factory emissions equipment.

Dyno numbers have shown an improvement of 128.5 horsepower and 217.8 ft-lbs of tq. Simply click on the link above to see the dyno numbers for yourself.

2013-2017 GT Unlock Cable
Previous to the release of this simple to use cable, you were required to remove your PCM from the truck and send it in for modification in order to allow you to tune your Cummins, obviously leading to down time for your truck. This simple cable allows you to use a Bully Dog GT (PN: 40420) to tune your, and any other 2013-2016 Cummins that also has a GT Tuner. This is a one time use cable, thus once you've originally installed the tuner using the cable, your truck is now permanently unlocked, even if you are to return it to stock, so you can tune your buddy's truck or anyone else's (as long as they have their own GT Tuner).

  • Purchase a GT Diesel Tuner and the Cummins Unlock Cable
  • Install the GT Diesel Tuner and follow on-screen instructions
  • Install the Unlock Cable and follow on-screen instructions on the GT
  • Install Tuning from the GT Tuner

Vehicle Specific Power Gains:

2015 Cummins 6.7L
  • Stock: No Horsepower / Torque Gain
  • Tow Gains: +26HP / +8ft-lbs Torque
  • Performance Gains: +55HP / +96ft-lbs Torque
  • Extreme Gains: +97HP / +185ft-lbs Torque
2015 Duramax 6.6L LML
  • Stock: No Horsepower / Torque Gain
  • Tow Gains: +31HP / +59ft-lbs Torque
  • Performance Gains: +50HP / +91ft-lbs Torque
2015 Power Stroke 6.7L
  • Stock: No Horsepower / Torque Gain
  • Tow Gains: +20HP / +50ft-lbs Torque
  • Performance Gains: +48HP / +92ft-lbs Torque
  • Extreme Gains: +71HP / +145ft-lbs Torque

Bully Dog GT Platinum Diesel Tuner 40420 Cummins/Duramax/PowerStroke doesn't fit with any vehicle.