would 6 cuft with 2 6" aero ports tuned to 32hz on a 12k , I know way too much power but gain will be set and then turned down, be an ideal box or should I go a different route. going in an 03 denali. the person Im building it for listens to mostly hip hop and occasionally the decaf stuff. the person he bought the subs from told him to do 5 cuft with 3 6" aero tuned under peak of vehicle and then plug one for daily driving. the person im building this for doesn't plan on competing so im just gonna do 2 6" tuned to 32hz which gets me around 9.4 sq in to cu ft ratio. any input would be appreciated.