Bully Dog GT Diesel

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  • Regular price $449.00

New Bully dog gt diesel programmer 40420 

Comes ready to install. 

01-15 GM Duramax 

99-16 Ford Powerstroke 

03-17 Dodge Cummins 

The Bully Dog GT 40420 is a downloader AND a monitor all in one compact electronic device!  Considering all the features contained within the GT it is amazing that installation is as easy as plugging the unit into the OBDII port and performing a simple download to the vehicles ECU. What's more convenient is that the Bully Dog GT 40420 works on almost all late model diesel pickups and even some commercial applications.

The Bully Dog GT 40420 features the all new patent pending Driving Coach feature. According to outside research studies, drivers can save up to 37% on their monthly fuel bill simply by adopting better driving habits. The Driving Coach feature shows people specifically where their current losses are coming from so they can make adjustments to correct their inefficiencies. In doing so, the Coach provides audio and visual feedback to instruct a driver on how to learn better driving habits.

Added horsepower and torque


Improved fuel economy


Safety Defueling


On-the-fly power level adjustment


Four different power levels to choose from


Easy installation (20-40 minutes)


Free internet updates and upgrades


Monitor and display vehicle parameters (PIDs)


Full Color display with multiple color themes


User set daytime and night time driving modes


Display current gear on vehicles with auto trans.


Vehicle specific download features


Initiate DPF burnoff on ‘09 GM and Dodge diesel


Defuel based on user set safety parameters


Read and Erase Diagnostic Trouble Codes


Display instant fuel economy and trip fuel economy


Exclusive Driving Coach feature, Patent Pending


Universal Suction Cup Mount includedHolds up to 10 custom tunes (not included)


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