2018 Intake Manifold IMRC Nipple Size? 3/8 or 1/2?

[AZtrophy]

Does anyone know the size of the nipple/port on the back of the 2018 intake manifold that goes to the IMRCs?
Is the circled portion below a 3/8" ID or 1/2" ID hose?

Image courtesy of @kwikS550 in this post.

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[AZtrophy]

I know there are people running IMRC lockouts. Any of you remember what size cap you needed for that port?

Thanks in advance!

 

[AZtrophy]

....aaaand it's 3/8". Hopefully this helps someone else.

 

[MaskedRacerX]

I don't have anything to add, just wanted to post in a thread with nipple in the title ...

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