The mufflers on my '96 (and on my wife's '99) do their job very well. Too well, maybe. When the engine's on, you almost have to look at the tachometer to see if the engine's running, because the engine's so quiet.
For those of us who can tolerate a little more noise, would a slightly louder muffler also give greater engine performance (reduced backpressure, etc.?) I've heard there's a trade-off between engine horsepower and muffler noise reduction...
Thanks,
Michael