This is an amazing turbo, I'd reccomend the 8cm hot side the 7cm really doesnt spool much faster at all, and holds it back up top.
can show you what this can do in a 2.5L. Look at that graph! 200WHP by 3250rpm!!
is a thread comparing the 7cm to the 8cm hotside.
I would be very interested, but I just picked up a GT28R for a really good price.