GMMG Exhaust? Any big difference between these and, say, a FlowMaster 40 series or 10 series? I'm assuming (because I actually have no idea) that GMMG is an acronym for something to do with General Motors, right? So, are your mufflers single or dual chambered, or more like a MagnaFlo design (straight through)? They sound really good, actually have me considering them over the Flow's...
it's a dual stainless chambered exhaust built by a company called GMMG out of Georgia. I have one on my ws6, and it sounds better than any aftermarket exhaust besides true duals. Can't buy it anymore though, but I'm sure you could fabricate something similar using sweet thunder chambered mufflers.
