Non-Turbo Intake Size

[Hecklebone]

Hi All,

Anyone know what the diameter of the non-turbo intake manifold is? Or more specifically what the OD of the fitting is? If there is not one, how could I connect a pipe?
I am going to replace my turbo intake so I can insert a fluid/air intercooler and just run it into the front intake port. I don't have one in my hands yet, but would like to get the bits in progress for when I do.

Cheers,
h.