I have to ask this. How does 2 12"s sound in your truck? How can you achieve any sonic ability with a box for 2 12" subs that would be able to fit into a box that small. A subwoofer box is not just a mounting box...it determines the wave length and sound output and this factor is arguably as important as the subs. Do they really sound acceptable? I had to put a 2" lift kit on my rear seat just to be able to fit 2 10"s and that was pushing it (or so I thought).