Have you thought of going back to an OEM type exhaust system? Not going to be as shiney.....but won't be melting your body parts.
Your scoot is identicle to many other brand names....here is one:
http://countyimports.com/inc/sdetail...---/1086/33193
This is branded a CMS Classic, sold thru County Imports.....claim to have 60,000 parts on hand.
As I said, many others sell these under different names.....all it would take is a bit of "google time" to find some more.