The WatchDog is digital gauge pack helps develop fuel saving driving habits and provides extra monitoring of truck functions.

Inspired by our popular HDGT, the sleek, intuitive MDGT increases horsepower, torque, and fuel efficiency for tow trucks, tool trucks and medium-duty applications.

The Bully Dog ECM Tuner is built with simple, easy-to-use performance in mind. This powerful device comes preloaded with the same high performance, dyno-proven tunes as our gauge tuners, except it is designed to be stowed away after installation–simply set it and forget it.

The Heavy Duty Gauge Tuner incorporates Bully Dog's SAE tested and emissions tested diesel engine tuning for both power and economy.