here is what i am looking for a box 12 cubic ft internally after bracing and sub displacement etc..with a 200 sq inch port tuned to 35 hz.subs up port back.it is going in a 2003 tahoe with barn doors.
width of box i want to be 48 inches height and depth not sure would like to be even with back seats .sub displacement is 0.31 ft per sub or 8.90 L