Good info guys, thanks for the input.

I actually found a few other forums of other makes recommending the same turbo mufflers, they seem reasonably priced too.

Another question, how loud are the stock hemi mufflers? I've never heard them I'm person. Quieter (but more restrictive) than the dynomaxes I assume? Would they be comparable to, say a stock, 80's GM truck in noise level?

Also, the floor and lower firewall of the car are already dynamatted. However, I still have to make (and insulate) the trunk divider.