congrats dude. HR is a very strong motor. You've made a great choice.

Don't bother with the intakes. TP + Greddy EVO2-TT exhaust will give you the most gain. A local member had that done and it's awesome (Rouge350Z with the Green Widebody Convertible on my350z)

Then do the coilovers and wheels, you're set. For the intake, wait until SFR comes out with a nice set or some other alternative. You'll get more heatsoak with the Fujitas.

Once again, congrats. It's nice to be back in the game isn't it.