Unleash your vehicle's potential with Bully Dog. Explore the best gas and diesel truck tuners, performance tuners, turbos, & accessories to power up your ride.

The Bully Dog GT Gas tuners unlock more horsepower & torque to meet the unique demands you put on your vehicle. With preloaded tuning you can plug ‘n play. The built in “Driving Coach” …

Explore Bully Dog's gas and diesel truck tuners and monitors for performance, efficiency, and real-time monitoring. Optimize your ride now!

Start saving today with the Bully Dog Heavy Duty Gauge Tuner with fuel savings up to 12% and keep the truck running longer safer. Utilize the driving coach to get the best economy possible.

The Bully Dog GT Diesel tuner and diesel monitor unlocks more horsepower & torque to meet the unique demands you put on your vehicle. With preloaded tuning you can plug ‘n play. The built …

The GT Gas tuners unlock more horsepower & torque to meet the unique demands you put on your vehicle. With preloaded tuning you can plug ‘n play. The built in “Driving Coach” feature …

Bully Dog products that are purchased comply with the Clean Air Act. Tunes that are preloaded in our devices have gone through hours of testing to ensure the safety of the drivers and the …

Bully Dog products that are purchased comply with the Clean Air Act. Tunes that are preloaded in our devices have gone through hours of testing to ensure the safety of the drivers and the …

The BDX hand-held performance tuner gives drivers the power they need, whether tackling tough terrain, pulling a heavy payload, or maximizing fuel economy on the highway. Its sleek design, …

Download tuning files: The Update Agent will retrieve the correct tuning files from the Bully Dog website. . Files correct, Uploading to Device: The Update Agent is transferring the tuning files …