I've read most of the posts regarding aftermarket exhaust systems and the various unique sounds and am interested in something more than stock but not a whole lot more. Had a Supersprint on my E61 and it was about right, still perhaps a bit subdued.
Ideally, I'd like to find someone who bought a system they decided was too quiet and it's sitting in their garage taking up space! At a reasonable price, I'd be willing to take my chances that I too might have it taking up room in my garage!