It looks like that hardline/softline piece is going to a secondary air injection for cat warmup on cold starts. So just a fancy flow stack intake on a metal box?
I'm new to these engines so I could be way off. Don't think its an Air to water box though.
To me this looks like a very expensive way to add weight to your car...
The terrible thing is that it was actually done to TWO cars!! I can only imagine the $$$ they spent to have this special "charge cooler" setup done.
Anybody have any info on this system?