I am picking up my 08 NBM xB today. I will be putting my 10W7 and JL 1000/1 in it soon. I had it in my Yukon and it slammed real good, ported box though. I think in the new xB I will be changing the box back to sealed since the xB is much smaller. I will give details as soon as I get it all finished, pics as well. I know how much you guys like pics!!