i have one 12" in the truck but its pretty flexible as to where i can put the box, plus i've been BOOMIN for years haha so i dont mind givin that up for better handling.. thanks for the suggestions so far keep em comin if anybody else has any input. by the way hellrot DEF do the swaybars i got mine from TMS and the difference was well worth the money, and they were the best sizes/etc in the setup that i found