Ridge Roamer installs new slip on exhaust from Ali Express  for the IBEX 450.  Significant weight savings on the scales, cleaner look, deeper and louder sound, and a removeable baffle!  Inexpensive exhaust from China on an inexpensive motorcycle from China.  Seems fitting.  Includes sound comparisons and installation guideline.  This is the medium length, 370mm I believe.

Products and links are always changing on Ali Express, but here's a couple that will hopefully get you started if you are looking for the same or similar:

https://www.aliexpress.us/w/wholesale...

https://www.aliexpress.us/item/325680...