Bully Dog Heavy-Duty Gauge Tuner
Bully Dog Gets the Most from Your Big Rig!
With the money you'll save on fuel, this Heavy-Duty Gauge Tuner from Bully Dog pays for itself in no time. Designed for semitrucks (also known as semitrailers, tractor trailers, etc.) to maximize fuel efficiency, no other tuning unit can compete with its options: Economy Tune, Economy + Power Tune, and Custom Tune.
Economy Tune: This standard setting consistently achieves mileage gains from 6% to 12%
Economy + Power Tune: Improves fuel economy while safely increasing horsepower and torque by up to 18% so you can pull heavier loads without downshifting... performance that saves you time and money
Custom Tune: Bully Dog offers complimentary tuning for MORE power, pull, and miles out of every gallon
Note: Not legal for sale or use on pollution-controlled vehicles based and registered in California