Bully Dog Triple Dog GT Tuner (49-State Legal) Reviews
Six hours to install
Reviewed By Benny D (ADAMS, OR) Reviewed for a
2003GMC Sierra—11/2/2015 8:17 PM
After a phone call to Bully Dog Tech the device began to do its duty. I'm still waiting. Fuel mileage has not changed. Performance is the same as it was before it was installed. I jump over the fence and what I thought was good was a blinding snow shower.