Hey, welcome to the club I believe most people on here would agree that the best place to begin your upgrades is in the exhaust. We've got three cats in our pipes and removing them or replacing them with high flow cats is the best place to start. Dropping in a catless upipipe and turboback exhaust will increase performance dramatically. There are a ton of uppipes and TBEs on the market, search the engine performance forum and you'll find information on many of them, also check out the Vendor forum, you can find good deals on there. After the exhaust, it's best to upgrade the ECU, the most popular options seem to be the Cobb Accessport, ECUtek and TurboXS UTEC. I personally have the Accessport and think it's the way to go if you are starting on a budget, although the other two allow for dyno tuning and additional mods, while the AP has pretty strict modding paths. Exhaust and ECU are a great platform to start on, the two combined should get you going pretty quickly. As for cost, full exhaust (UP + TBE) seems to start at about $800, and averages out at a little over $1000, but can cost much more. The AP is $600, and I believe ECUtek is similarily priced, UTEC is about $1000. Search the forums, there's a lot of great advice and information on here, and many people smarter and more knowlegable than me. Enjoy your new car!