what's the exhaust side?
I run an s475 with .90 a/r and 83mm wheel on stock sticks. It's a bit Laggy, but I don't mind it one bit. Would I benefit from going to an 87mm wheel? -(it's smokinu497's turbo that was brought up previously in this thread.)
the turbo I want is only offered in an s472/83 or 87 and in a s475/87