This pic shows a ALUMINUM intake manifold unless I'm blind which is more than possible. The component you circled is plastic. I would still keep that aluminum one regardless.
Keep it as a backup....trust me.

 

You are incorrect once again.

The pic shows a COMPOSITE (plastic) intake manifold w/aluminum crossover. Like I said before , just the 99 MY 5fours had aluminum..., AFA PI manifolds (a few posts up) anyway. They are one of a kind.

 

Yes, this bottom pic shows the comp upper I m and the aluminum front crossover.
Either way, if I can get/use aluminum over comp I'll do it but to each his own.
Those comps have cracked on me and leaked

 

Thank
Dupont Zytel Nylon (that sheet is everywhere these days)
They have been cracking and warping since they came out
Mustangs and T birds got them first on the 4.6 and the drivability guys both had one on the bench every day to replace
That was back in what? 1996?
I believe the Dorman ones are made of the same stuff