Thanks heaps man.
Yep, am considering GTRS or Rb25 max high flow, but wouldn't mind going slightly bigger just in case I scrap the RB20 in the future, then I wont have the hassle of looking for another turbo, can just use the one I was using on the Rb20.
Roy's car is a machine, love it! Makes awesome power, and for the amount of time its lasted with the trashing he gives it is unbelievable.
Thanks again, sorry to go off topic!..