Might want to try posting on WNYDSM.org or RochesterDSM.org as well. DSM owners tend to have spares for just about anything. You may get a faster response.
Also, give Hybrid Connection a call. They might have a parts car or three, you might get lucky.
I sold my complete 2G GSX stock exhaust (downpipe, cat, muffler) last year. Sorry.