What would be a good recommended aftermarket radiator that would fit with the Vortech sc? Koyo or PE??

 

Check out the Koyo V series, it is a little thinner than the R series and is under $300 shipped. I just ordered mine from 500whp.com. Granted that I have the Procharger, but I think we have similar available room.

 

I have the PE with a greddy kit and the fans or shroud did not have to be shaved. It is a little more expensive than the koyo, but other than having to make top brakets (PE is made for 350z not G35) it is a direct drop in.