I first test drove a 6MT, and then a 350Z. The 350Z sounded good to me under normal acceleration, although both cars were too quiet at idle. The 6MT seems too quiet overall. I'm coming from an 6 speed Z28, and nothing sounds better than a small block Chevy. But I'm looking forward to the more refined character of the 6MT, but it's just too quiet, like stock 6 cylinder Hondas and BMWs. I'd be very happy with the sound of a Porsche of course, but no coffee can sounds please. Any recommendations on just replacing the mufflers?