Well, there is that Youtube drag race video somewhere, you can definitely hear the side outs on that video! Type "Supercharged Alfa" or something like that into Youtube to find it.
I really liked that side exiting system. It was optimal for power as far as catback systems go. It was light, made servicing easy, and kept heat off the rear brakes. However I only had 10 sets made and they are all gone. It was actually a time consuming system to make because the bends had to be very precise to maximize ground clearance, yet not rub on the body.
Greg Gordon,
hiperformancestore