i heard a single 10 in v.t. designed slot port box in about 90 model camaro, it was loud as h3ll off a rf punch 40. (1996-7)can't tell you about sq, don't remember.
I had a couple VT boxes and a sub called a v.t. hammer pro back in high school, for what its worth it was pretty loud, I know they had a sub called the deadblow that loud as ell, both of em had ok sq, not great.
Everything been going good, i've been real busy, we had a couple minicamps that were a straight beast! Nah i havent got my setup yet, really i just havent had the time, i still have no idea what i'm going to get, but should have something by the end of the summer.