See Details

30% Off Online Orders of Select Parts and Accessories. Enter Promo Code PEP30 in Cart

Close (X)

30% Off Online Orders of Select Parts and Accessories
Receive 30% Off Your Online Purchase. Use promotional code PEP30 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 10/27/16. Online orders scheduled for in-store pick up must be completed by closing on 10/26/16 for discount to apply.

Zoom [+]
  • Part #: 40420|
  • SKU: 208996

Available today after 6 p.m.

    • Huge Horsepower And Torque Gains
    • Improved Fuel Economy
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

Bully Dog Triple Dog GT Diesel Gauge Tuner

The triple dog gauge tuner is a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The GT dramatically improves the utility of several vehicle applications by providing an increase in horsepower and torque and by improving fuel economy through better engine tuning. The GT monitors and displays over fifteen different vehicle parameters (PIDs) and it includes our 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. Also included is our performance testing feature designed to test a vehicles performance capability on the drag strip; couple this with our 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.
  • Huge Horsepower And Torque Gains
  • Improved Fuel Economy
  • Display Over 15 Vehicle Parameters
  • Reads and Erases Diagnostic Trouble Codes
  • Four On-The-Fly Power Levels
  • Easy Installation
  • Free Internet Updates And Upgrades
  • 30 Day Money Back Guarantee
  • This product is restricted in some areas and is not available for Shipping.
Bully Dog was formed in 1998 in Aberdeen, Idaho. The founders of Bully Dog Michael, Phillip, and Daryl Klassen were heavily influenced by their father Harold's interest in improving vehicle performance. Several years prior to the company's inception, Harold had experimented with increasing performance on his diesel farm tractor by injecting propane into the engine's combustion chamber. Bully Dog products are developed with you in mind and each of you has a different need, want and desire. Our products, all the way back to the first propane kits, reflect that. Bully Dog products are built to be flexible, allowing each user to get their own desired result, from outrageous performance on the race track to improved fuel economy driving down the highway. Bully Dog products have you covered with increased performance, added safety and improved economy. This is evident with the Triple Dog Downloader, Outlook Monitor and the new Performance Management Tool. These products offer the safety of a module married to the performance and flexibility of a downloader. Product innovation is key and Bully Dog takes innovation very seriously. In the past 8 years, Bully Dog has been first to market with product fitment and function over 80 times. They are the ONLY manufacturer that allows you to take their product for a free test drive with the Tri Before You Buy program. And in 2005 with the release of the Triple Dog Downloader and Outlook Monitor, Bully Dog revolutionized the market with the ability to adjust power, safety and economy levels on-the-fly while driving down the road. So what are you waiting for, find the right product for your vehicle and Unleash the Power!


Rated 2 out of 5 by 1 reviewer.
Rated 2 out of 5 by Makes transmission shift hard After install transmission is shifting a lot harder and once in a while the screen freezes I would not buy another one again August 22, 2016
  • 2016-10-22 T09:39:05.680-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_1, tr_1
  • loc_en_US, sid_208996, prod, sort_default
1-1 of 1