I know that you can use an n/a tb on a turbo car and it is supposed to be an upgrade, but what about an n/a 4g63 intake manifold? Can they be used or is there something different that make it not work or not worth the effort to make it work?

Hmm. That's a new one on me.

I think the NA intake is missing the port for the line that goes on the BOV.

I've got my original 1G Turbo intake manifold if you need one. It's painted with Harley Davidson balck wrinkle finish and looks pretty sweet. PM me and let me know if your interested in throwing me a few bones for it.

Thanks for the offer but I am already running a 1G intake.

I was just curious because I was looking at buying an n/a intake and tb.

I was always under the impression that an n/a tb had a bigger bore, but after further searching have found out that they are the same size where they attach to the intake. They are just 4mm bigger at the neck. Which would have its advantages if you are planning on building custom IC pipes like I plan on doing.