A buddy of mine has (2) 15" L7's that he wants me to install in the back of his Lincoln town car. So space really isnt an issue. They are the 2004 model I think, not the black ones but the silver ones with the red and black center. I'll try to snap some pics of them.
I was thinkin around 3.5 cubes each @ 35 Hz... He doesnt care about SQ just wants to be stupid loud. That box seem right per woofer?