I bought cheap sub box but it was sealed box. I wont to port this box for better and deeper bass. Size of the sub box(dual) is 12.5" H x 12.5" W x 25" D .96Cubic foot per side. Is this big enough to port and what port should i use.
Ported boxes are larger internally than sealed boxes and .96'^3 per side isn't much to work with. If you want the benefits of a ported box, have one made for your vehicle and drivers.