So I treated my 2007 Solstice GXP auto to a few upgrades this week. Solo street race exhaust, Werks intercooler, Werks discharge pipes, 3 bar map sensors, a street tune, and a differential fluid change. We did the street tune at Dave's recommendation as automatics are problematic on the dyno. So I have no actual HP or torque figures other than the car runs like a jekyl and hyde. I had a 2007 Solstice GXP manual a few years back with the GMPP upgrade. No comparison! When you hit the gas boost is instantaneous peaking at 24 lbs and shifts are quick. The first time I hit it I had to let off as I was caught off guard by the rear tires breaking loose . Dave was amazing to talk with and the variety of Solstices in his shop being worked on were astounding. He had several V8 conversions from mild to wild including a beast that was turboed. He had a few 2.4's waiting to be turboed. A coupe arrived to get additional upgrades when I was leaving. Dave introduced me to the owner. It had every upgrade imaginable for suspension, Big brakes, big wheel/tires Norm parts everywhere, including a see thru hood, and upgraded engine parts sprouting from every place possible. I enjoyed my visit and I am looking forward to next years upgrades. I intend to add a larger turbo and tune. I highly recommend Dave's services.