I met up with GregW last week to hear his Eissenman sport. In short, it sounds and looks really good. All I can say is that it I am even more excited to get an exhaust! The volume of the exhausts are hard to describe because the range varies so much. I can't say whether the Eissenman race will be too loud or just loud enough. Maybe I need to hear Greg's again :-)
The lowered stance makes a huge difference over stock obviously. I think the difference is dramatic in contrast to stock.