MAn if your just looking to bolt on a few more ponies to your N/A without going crazy you need the 2.5 DP just do an open cone in the forsale section theres a link a a $20 AEM one on ebay that pretty much we all got that will slap right on. If I were you tho I do a few minor power adders DP, Open cone and just a good tune up and then dig into handling/looks. You can do qwite a bit to make these boats handle wayyy better and look wayyy better. Oh yea and a custom tune will always be your biggest bang for the buck.