Hey everyone, I'm new to the z and I just purchased a 2006 gt coupe. I won't even have it for a week or so as its being shipped from the dealer. Anyways I was just wondering about engine performance upgrades ( besides turbos and superchargers ), I know there is bound to be some stuff that is a complete waste of money. What should I be looking for and what should I be avoiding?

Thanks, great site by the way. The info I found here was excellent when it came time to make a purchase.