There are some nice exhaust upgrade but they're like thousands of dollars for complete kits (not including header). If I ever go with custom upgrades, it has to be ghetto rigged. There are many muffler shops around that will custom bend any pipe, cut and weld, and slap on a sport muffler of your choice. Anything before the cat, I don't want to mess with.
Man, I'm still waiting for my plates too!!!!! Can't wait to put them on. 2008 registration, whew. I usually buy my cars late in the year so I'm usually the last one to get the new sticker for the following year. Now I'm ahead of the pack. Yessss!!!!!!!!!!!!!!!!!!!