Hi, my name is Terry and I live in Fort Lauderdale, Florida. I have a 2008 Pontiac Solstice GXP and I already have the GM upgrade with the 3 bar sensors and the installed computer that has been flashed by a GM dealer...still under warranty. I have been working as an A&P technician on Aircraft since 1970 and it has been a struggle to keep current with todays technology. I hoping that HPtuners website can educate me on this interesting way of adjusting your onboard computer for your car to your desired perfomance. I have already purchased Greg Banishs' Book "Engine Management:Advanced Tuning" and anxiously awaiting its' arrival.