Are the end tanks plastic ?
What psi are they good up to?
I am looking at using one for my custom fab setup.
Yes the Endtanks of the stock units are plastic.
Not sure what PSI they are good till, but search here:
P.S. I’ve run 20PSI on the stock Z32 intercoolers with no problems. I’ve heard of 25PSI on them as well, but you’re well past the cooling efficiency in both cases.