So I guess this will be the posts to my new build for my car. So we will start off with sub box. I already have all the stats I know exactly how large and what my tuning is and also bracing, displacements and what not. So I currently have everything in place.the length of the side in question is about 21inches long. So I am deciding on best way to brace it is all or if any is needed. Box gross deminsions are 16h x 36w x 22d. The chickens kept trying to eat the box.