got my (2) 4" psps aero's from a dealer here in my area for my 2.5 cube box for my 15" heres a few pics:
got the ports in, box doesn't face like this when competing, ports go to the back, and sub is up, i just have it like this, because the deck lid shakes like mad, and sounds like crap for daily lol
so ya, its 2.5 cube's, tuned @ 48hz i belive, did 136.7 on the hyperdynamics, which is ruffly 137.2 dB's on the termlab off ruffly 550wrms on the coustic 600se
we also forgot to take the cutouts for the ports out of the box, after we cut it, so who knows, might gain a bit more after thats out, get a gasket on the sub, and a fat guy on the trunk lid, who knows! hahaha!