Hey guys, I am going to build a couple of fiberglass enclosures for the Tiida´s trunk´s corners (here at Mexico the Versas are called Tiidas), I am gonna use a couple of MTX MZS1004 (10") Subwoofers (one at each corner). MTX´s manual specifies that a sealed enclosure is better for this subs, but because I am going to start building custom fiberglass enclosures as a business, I would like to build mine ported in order to show off a little bit, but the big question is, should I just take the MTX´s recommended ported enclosure volume and port size, build a fiberglass enclosure with the same volume and attach a MDF port with the measurements specified by MTX? let´s say, with screws? I think some more dBs are worth it. Or what´s the best way to put a port on a fiberglass enclosure? Its size is an important factor, even though Tiida´s trunk is huge, that space is needed for carry other things. Hope you give me advises soon. Thanks.