Repairs Scag STT61A-22KA Turf Tiger Muffler

I am having a real problem locating a replacement muffler unit for my older STT61A-22KA Turf Tiger w/ the Kawasaki FD661D 22.0 HP, the mower serial number is 5491219. Can anyone help or point me to someone that can help? Please email me at RussellMartin@ge.com
Thanks

Repairs Scag STT61A-22KA Turf Tiger Muffler