i want to buy a cheap aftermarket exhaust. slip on or not doesn't matter.
Ebay is your friend.Don't forget that the GS requires a rejet after installing a better exhaust.
http://cgi.stanford.edu/~sanjayd/gs500/Upgrades/Exhaust
does it have to be afermarket, casue im converting my gs to gsxr 1k duals, and will have a free can available afterwards