Bully Dog

Bully Dog began in American Falls, Idaho in 1998 as an enthusiast business focused on improving diesel engine performance.

Bully Dog leads the way in Performance ECU Calibration and premium aftermarket equipment. With cutting-edge technologies utilizing mobile computing, Wi-Fi, Bluetooth communication, cloud computing, and performance monitoring, Bully Dog delivers unparalleled results. Thanks to their talented team of designers, engineers, and customer service staff. They always stay ahead of the game!

As a result of joining forces under Derive Systems, Bully Dog, Bully Dog Big Rig, SCT, and VQ brands have merged to become a powerhouse in the automotive technology industry.