I have 2 soundstream t5 15s in a ported box the box is not big enough for ported demensions are as follows wedge box behinde my back seat in my tundra crewmax limited space hieght is 24in width 48in top depth is 8.5in botom depth is 10in 3 ports center top 4in diamiter and 18in long each the subs are facing forward behind the seatif im correct i have 4.25 cubic foot box should i just remove posts and seal? suposedly optimal sealed is 2 cubic each .