1) Don't double post
2) Pushing 22PSI out of a "big" 16G is out of it's efficency range.
3) the stocker can handle 20PSI without issue.
4) Perrin makes a popular BPV that's reasonably priced and works great for rediculous PSI
5) Turbo inlet pipes aren't worth dick on a stock intercooler and most aftermarket intercooler will come with their own.
well, there are too many variants of the 16G to be specific. The only real way to know is to get a pressure/flowrate chart from the turbo and see for yourself. I'd wager 20PSI though is about all you'd want to milk out of the thing. It matters on your intake/intercooler some too. Eventually you just start getting more hot air.
I think the stocker would handle 22psi anyway. I haven't really heard of one poppin'.