there has recently been a good amount of discussion of how the exhaust sounds if the cat has been removed. so i did an experiment, no, not removing the cat, that i did a long time ago. my experiment was to take a short video w/sound as to how it sounds (never done that before). it sounds a little deeper in real life, the microphone on the camera isn't that great. but gives you an idea.

http://home.earthlink.net/~skratches/nightstick.mpeg

and now, shameless plug, i have a nightstick for sale in the classifieds.....