I am building my 1st sealed box for 2 soundstream spl 160 15's (4.5cubes before displacement)that's going in a cavalier 2dr.I'm not for sure but do I need a divider in between them or what?If so,does that divider act as a brace as well or do i still need to brace it?I've built 2 slot ported enclosures but not a sealed yet...sorry call me stupid.//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif