If you go to www.bimmerforums.com, and look up a thread called "323is exhaust", I found it on page 5, There is a large talk about exhausts. Maybe they can help you. I'm sure there are several exhausts out there, just not sure about the 323.
__________________ 1995 325I, window tint, K&N, debaffled airbox, BMW #104 wheels, Nighthawk low beams, smoked side markers, smoked corners, smoked taillights, M3 stlye heated mirrors, various interior bits, Bosal cat-back.
I honestly haven't heard many other bimmer aftermarket exhausts in person, but, yes, I would say it's quieter than most. That's not to say you can't hear it at all. I think it sounds great, but I didn't want something loud. I was more concerned about it sounding deep and non-Honda-like, lol, which I think it does. Plus, there really aren't very many options for the 323.
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