could someone come up with a design and some dimensions for 2 L7 15's in a ported box....the room i have in my tacoma is 50 long, 32 in height and 18 in depth. im looking to have each sub in a 6.5 cuft chamber, and have the subs firing toward the windsheild and same with the port, as far as tuning i dont kno weather to go higher or lower, i do wanna enter some comps in the up coming year, this will be a daily driver but i looking for low enough bass to make your chest hurt, blurried vision, knocking rearview off, set off alarms...anyway anything is apprecaited...