Anybody here into modifying or fixing up cars? I just put a STS turbo system (www.ststurbo.com) on my 2006 Pontiac GTO over the weekend. It was a big job but it sure is fun. I have to take it easy for a bit until I get the software tuning all dialed in, and then the intercooler goes on in a few weeks. With the intercooler and 5 psi the car should make around 470 horsepower at the wheels. With 7 psi it's up to about 520. The coolest thing of all is that my fuel economy under normal cruising is up about 3 mpg according to the car's fuel economy estimator.