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Bully Dog Big Rig Heavy Duty Gauge Tuner (HDGT) for Cummins 46500

Part# 46500 l UPC# 681018465007
$2,088.90 Now $1,899.00
FREE NEXT DAY AIR - Ships Out by Next Business Day


Product Description

Parleys Diesel presents the new Heavy Duty Gauge Tuner (HDGT) from Bully Dog Big Rig. The HDGT is Bully Dog’s top heavy duty product and represents years of development and ingenuity. Incorporating Bully Dog’s time-tested, SAE approved economy tuning with the complete gauge package, diagnostics capabilities and proven Driving Coach software of the already revolutionary Heavy Duty WatchDog — the HDGT is every big rig owner’s dream.

The Heavy Duty GT’s tuning options surpass those offered by competing tuners in customization and selection. Choose between the standard Economy Tune, the Economy+Power Tune or let a Bully Dog trained professional create a custom tune tailored to your needs. With the Heavy Duty GT you can monitor live efficiency readings and safety warnings at the same time; Read & clear trouble codes and perform diagnostics on the road without a mechanic; Adjust the top speed limiter; and so much more. Incredibly, the physical installation takes less than 5 minutes.

Key Features

  • 3 Power Levels
  • 15-20% Power Increase
  • 6-12% More Fuel Economy
  • Easy Install
  • Switches Easily Back to Stock
  • Includes Internet Updates, Upgrades and Customized Tunes
  • Note: Does Not Support Emissions Deletes

Fits The Following Cummins Engines

  • 2007-2013 ISC 8.3L
  • 2007-2013 ISL 8.9L
  • 1999-2003 ISM CM570 10.8L
  • 2004-2010 ISM 10.8L
  • 2011-2015 ISM 10.8L
  • 2010-2011 ISX 11.9L
  • 2011-2013 ISX 12
  • 2010-2013 ISX 15
  • Cummins N14 14.9L (Celect Plus Red Top)
  • 2000-2003 Signature ISX CM570 14.9L
  • 2004-2007 ISX CM870 14.9L
  • 2008-2010 ISX CM871 14.9L
  • 2011-2017 ISX 2250 14.9L
  • 2014-2017 ISX 2350-14.9
  • 2017-2019 X15 with 485, 505, 525, 565 & 605 HP Engines (X15 Gains Vary By Engine)

Bully Dog has invested significant resources in research, engineering and testing into the Heavy Duty GT. Designed with the one goal of adding bottom-line profits through lower fuel consumption costs, the HDGT delivers. Return on Investment (ROI) with an HDGT is often realized in a matter of months, not years — saving drivers and fleets real money every haul! Updates and upgrades are available for free over the Internet for as long as you own your Bully Dog Big Rig tuner. Bully Dog is serious about Big Rigs, and it shows in their dedication & the work they’ve put into the Heavy Duty Gauge Tuner.

Bully Dog Big Rig Tuner Testimonial Video Playlist. (Videos automatically play one after another)

Engineered to safely improve the operation of heavy duty trucks by providing a more efficient fuel burn, the HDGT features enhanced real-time feedback thereby heightening driver awareness. This saves time and fuel — which translates into money for fleet owners and owner-operators. The available features and high-end tuning offered by the HDGT are expertly assembled offering maximum value to drivers and companies. This value is truly compounded by unique Bully Dog custom tunes for every truck included in every HDGT.

Bully Dog Big Rig Tuner Mileage Test

Click here for California Proposition 65 Notice

This product can expose you to chemicals which are known to the State of California to cause cancer. For more information go to