tjbizzo

I've searched and haven't been able to find a list either here on H-T or elsewhere that tells which cars came stock with an ADJUSTABLE blowoff/bypass valve. Or alternatively, stock BOVs that you can change the springs in or are easily modified, i.e. not some plastic pos that doesn't come apart or a metal one that only comes apart with a hacksaw. I would really appreciate if some of you boost gurus could shed some light on this. Much apologies if this has been asked before but searching for BOV brings up like half the posts in this section and my eyes are watery/head is spinning from reading.
Muchas gracias!