On my way home from work tonight some dude on an '05 ZX6 waved me down. He had a Muzzy's slip-on on his '05. He told me has another he wants to get rid of (off a different bike) and he's asking $175 bucks. He said it's in great condition. I've never ridden anything with a Muzzy's before but his sounded nice. What do you think? :O BTW: Mine is still stock....