oh, zapco is sposoring a truck right now, a new silverado or sierra, forgot which one. anyway, it has two SSX 12" ported in a cut through with three c2k 9.0's one on each sub and one on the highs. for highs it will have two sets of c2k components. that thing should wang super hard. zapco says they want the loudest truck in town, and in a town of 350,000 it has to be a really loud truck to do that.