From the moment I decided to spend my money buying a GTM product till the day I finally got my Z straightened out is a TEXTBOOK reason that anyone thinking about boosting their Z better have ALL THEIR DUCKS IN A ROW. Debt and comprimise will bend you over and make you wish you bought a Ford Escort or Honda Civic. ANYBODY'S best bet is to buy a car from the manufacturer that is as fast as you need it to be. PERIOD.