Congrats!
Perfect colour, but I'd look into some spacers maybe, the wheels look a bit hidden inside. Popular choice is 20mm front, 25mm rear.
Plenty of exhaust to choose from, we're even doing a deal on the Invidia now, by far the most popular choice, have a look here:
http://www.350z-uk.com/topic/108689-torqen-deal-alert-350z-370z-invidia-gemini-for-869-delivered/
alternatively, you can have a browse here for some more inspiration:
http://www.torqen.uk/84-exhaust-systems