Im lost in the sauce. This is going to go in an s10 extended . I am oveseas and need a box it says 3.75 cu ft of air space but I can't tell will that be only 1 chamber or two as in it only has 1. 73 or what not per chamber. I cant get anyone to build me a box cause I dont ahve dimensions for my truck so this is last resort. Any info if this box would be good. I cant build my own cause im in Iraq and wanna have a box and system ready by the time I go on leave.