Originally Posted by jran76

So, I was wrong. It does look like it is split in some way, and the MAF's are specifically referred to as for "Bank 1" and "Bank 2" in the service manual. I am assuming that there is something to even out the airflow to each side, but not sure what it is.

Here are some good pics of the inside of the manifold. DIY 350zHR Intake Swap