Bully Dog GT Platinum Diesel Tuner for 2011-2016 Chevy GMC 6.6L LML Duramax 40420

Part# 40420 l UPC# 681018404204
$699.99 Now $381.65
FREE SECOND DAY AIR - Ships Out by Next Business Day

188 In Stock


Not Available to Ship to California


Add Optional Sensor Docking Station

Add Optional Mounting Hardware


Product Description

The Platinum Diesel Gauge Tuner is a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The Platinum dramatically improves performance by providing an increase in horsepower and torque and by improving fuel economy through better engine tuning. The 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

  • Three different power levels to choose from
  • Easy installation (20-40 minutes)
  • Initiate diesel particulate filter burn-off
  • 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
  • Warnings 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 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 Platinum Diesel Tuner has the following tunes for your 2011 – 2016 Chevy GMC 6.6L Duramax LML:

  • Stock Tune: The Stock Tune features the factory HP level with the ability to use all the Triple Dog 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.


Performance Gauge Functions

  • Real Time Fuel economy
  • Average Fuel economy
  • Trip Fuel economy
  • Load %
  • Coolant temperature
  • Engine RPM
  • Speed
  • Air intake temperature
  • Throttle position %
  • Fuel usage (gallons per hour)
  • Transmission temperature
  • Exhaust gas temperatures (2 locations)
  • Turbo boost pressure
  • Barometer
  • Battery voltage
  • Injection control pressure (ICP)