Ok so I'm at somewhat of a cross roads and I'm not much of a sound expert. I previously had 2 JL 12W0s in my '03 and they hit nice. Unfortunately the box won't fit in my '05. After talking with some friends, I've been told I can build a box for 4 JL 8W0s and have some really great SQ and a nice umph. I've never owned any kind of 8 inch sub, so I'm looking for opinons or advice on switching from 2 12s to 4 8s. Thanks again for all the great info.