from what i could find, my box dimensions were 41w x 16h x 20d the box did not sit all the way up against the seats. I had to attach the sides and the top and bottom together, put it in the trunk, then put the back and baffle on, then mount the subs. It was a tight fit. I would have to remove the trunk rubber seal, shave the corners of the box down, and remove the trunk latch to get it in, and it still scrapped on the 6x9s and factory amp. Box was 6.13 cubes before displacement.