mac mid pipe gasket, oops?

I thought mac quit selling the x. I threw way the gasket on the passenger side and used a ford metel gasket on my mac prochamber.

No you did good. Ford OEM gaskets > Crappy Mac toilet paper ass gaskets.

And there's no gasket to put on the drivers side

What do you mean by funnel looking gasket? There is a metal flange that probably came with it that is supposed to go on the driver's side to ensure a tight seal. Then, there is the paper mac gasket that could only fit on the passenger side. You did the right thing and used the oem metal passenger gasket over the paper one. I think you did the correct thing on the driver's side if you put their little metal flange in the pipe before bolting it up.