i think its too early to tell... the g/350z also have been about almost 5 years now too. im sure there will be plenty of aftermarket support for it in a couple years.

 

Definitely a possibility but I just think the dual injector/direct injection setup on the 350 makes it a bit more difficult to handle fuel upgrades. I don't see E-Manages or any bolt on fuel controllers able to comprehend the OEM ECU's fuel commands thereby reducing the popularity of bolt on forced induction. Toyota doesn't seem to want to make another Supra for some reason or another.

That said, it's already a blazing fast car and if the money's there people will make a solution. If that means gutting the car's entire fuel system to plumb a standard one, I'm sure someone will try it. Or they'll follow the Falken Drift car approach and start gutting IS250's to put in the tried and true 2JZ.