reneeb7363
10+ year member
She-Nay-Nay
with that much weight and that much flat area, supporting is a MUST! There will be so much flex that all of the bass energy will be wasted... might as well screw a 10" sub to the rear deck. Dont waste your hard work and let all that possible sub energy go to waste. Even if you want all 4 in the same internal enclosure please, please, please put some internal support in it! You will be much happier.