Same experience here. Turbo lag was terrible, power overall seemed low compared to my norm. My average seemed up by 2mpg but I did not keep it long, as the lag and loss of power it was apparent that I would not have made the pulling trip to Montana that we had just finished. The GDE tune installed a week and a half after AEM install with impressive results, no turbo lag cold or hot, more torque and power apparent, not smoke the tires but can feel. As a former professional racer I trust the seat of my pants. The tune was the best thing I have done to my truck. We now have over 102k miles. The wife can't wait to get our settlement check to buy her tune.
