I own a 94 318iS with 190,000 miles. The muffler is starting to sound a little noisy. Can anyone give me an idea on what it will cost to replace this? I am the original owner of this vehicle and am contemplating replacing it. Thanks -- to be removed from bmw, see /bin/digest-subs.cgi or email "unsubscribe bmw" to majordomo@domain.elided