Wich gen exhaust/turbo manifold do I have?

[turboimports]

Sorry all.
But I'm trying to find out what exhaust/turbo manifold I have.
Is there anyway I can tell by just looking? There has got to be a way.
I remember something about the different studs, but can't recall off of my head at the moment.
Any help is greatly appreciated.

Thanks.

-Lor