Hey guys, just noticed while looking at other 7m-ge engine bays that I don't have this entire assembly..
I've also realized I'm missing the surge tank below the intake manifold, the VSV, and vacuum hoses associated with the part (guessing that's why my ACIS doesn't function normally).
Question is, what are those two things, and would they affect the performance (in a good way) of my car?

I've also realized I'm missing the surge tank below the intake manifold, the VSV, and vacuum hoses associated with the part (guessing that's why my ACIS doesn't function normally).
Question is, what are those two things, and would they affect the performance (in a good way) of my car?