Making a boost leak tester/ stock rb25 turbo inlet diameter?

[silviasgp06]

Im making one tonight after class and so I don't have to come home disassemble all my turbo piping, measure it, then put it all back on and go back to the store I figured ide ask.

I was wondering if someone off the top of their head knew the stock rb25 turbo inlet diameter. I think its 2".

Also, are their any out of the norm thinks I should be aware of when testing a stock RB25 besides capping off the iavc?

Im following these instructions http://forums.evolutionm.net/e....html

thanks-Daryl