Bully Dog GT Platinum Diesel Tuner for 2007.5-2010 Chevy GMC 6.6L LMM Duramax 40420

Part# 40420 l UPC# 681018404204
$549.00 Now $469.00
FAST FREE 3 DAY SHIPPING - Ships Out by Next Business Day

46 In Stock


Not Available to Ship to California


Add Optional Sensor Docking Station

Add Optional Mounting Hardware


Product Description

The Triple Dog Platinum Gauge Tuner is a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The GT Platinum dramatically improves performance by providing an increase in horsepower and torque and by improving fuel economy through better engine tuning. The GT Platinum monitors and displays over fifteen different vehicle parameters and it includes the all new Driving Coach feature which teaches you how to maximize your diesel’s fuel economy potential.

Key Features

  • On-the-fly power level adjustment
  • Four different power levels to choose from
  • Initiate diesel particulate filter burn-off
  • 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 nighttime driving modes
  • De-fuel 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
  • Note: Does Not Support Emissions Deletes

This value-priced and feature-packed diesel tuner reads and erases diagnostic trouble codes. Also included is Bully Dog’s performance testing feature designed to test a vehicle’s performance capability on the drag strip. The tuner comes with PC analysis software so you can determine vehicle horsepower. The Triple Dog GT Platinum Diesel works on most late model diesel pickups including Dodge, Ford and GM. A complete list is found under the “Vehicle Applications” tab above.



The Bully Dog GT Platinum Diesel Tuner has the following On-The-Fly tunes for your 2007.5 – 2010 Chevy GMC Duramax LMM:

  • Stock Tune: The Stock Tune features the factory HP level with the ability to use all the Triple Dog GT Platinum’s other amazing features.
  • Tow/Economy: +50HP & +100TQ. The Towing Tune is designed for users that will be towing heavy loads and need to add fuel economy, power and drivability for getting on the highway and going up hills. Towing capacity in this tune will remain the same as the vehicle’s factory rated capacity. While not towing the Economy Tune is designed to add 2-3 MPG to the stock vehicle while still increasing the HP and TQ to make your truck more drive-able. (Economy gains are subject to driving conditions and may vary).
  • Performance: +75HP & +125TQ. The Performance Tune adds substantial power down low and will also improve fuel economy with conservative driving. Your truck will feel much more lively and responsive while using this tune.
  • Extreme Tune: +120HP & +250TQ. The Extreme Tune is engineered to add extreme power and drive-ability! Users of this tune will see substantial gains in HP and TQ while still increasing fuel economy (if they can keep their foot out of the pedal while they’re enjoying the power). This tune is designed for use with a cold air intake system and diesel exhaust and should not be used for towing.


Performance Gauge Functions

  • Real Time Fuel economy
  • Average Fuel economy
  • Trip Fuel economy
  • Load %
  • Coolant temperature
  • Fuel rail pressure
  • Manifold absolute pressure
  • Engine RPM
  • Speed
  • Timing position
  • Air intake temperature
  • Mass Air Flow (grams/sec.)
  • Fuel usage (gallons per hour)
  • Transmission temperature
  • Exhaust gas temperatures (2 locations)
  • Turbo boost pressure
  • Barometer
  • Injection control pressure (ICP)