Dylan at Fishercustoms.com is designing me a ported box for my Stereo Integrity BM10 (1.5 ft^3 tuned to 36 Hz). It'll be a couple more weeks before I can turn design into function since we're still in well, design phase. My goal is to free up some under seat space for my aux battery and try to maintain some high quality low end bass. If this works up to my expectations I could be motivated to make a few extra boxes to sell with matching subs if anyone is seriously interested.

here's a teaser pic. Nice thing here is, this will get anyone started on a sealed box with a LMI seat lift with max dimensions based on my currently running design. You'll have to figure the rest.

Oh this currently houses my BM12's quite well. So other subs should work fine long as they aren't extremely huge. So if you need measurements for a sealed box ignore the port in this image. This should net around 1.7ft^3 minus sub displacement.