I just bought a used 04 350Z roadster in black with black top. Car only has 7500 miles on it. I just ordered a vortech supercharger which i'll be receiving on May 1st (long story why it's taking a while to get), and hopefully i'll be able to install it the following weekend.

I've already done to the car:
20" chrome wheels
Custom Air-Ride Suspension
Limo Tint all the way around

Any thoughts on what I should go with next? I'm torn between a borla exhaust with side cutouts, or a big brake kit?

On the list also is a custom interior, custom paint (i'll be keeping the black color, so don't worry. It'll just be 10x better) :-)

umm the exhaust should have been one of the first mods on it (you skipped the I/H/E/UDP step) but since youre already planning on a supecharger i'd say get the big brake kit.....the bigger wheels have already taken down your braking ability a little bit