Here you can get a Voca Cross Upper for mopeds with AM6 engine & exhaust on the right side of the bike.
 
The exhaust was mounted on a Rieju MRT 50.
 
Shipping includes:
- exhaust manifold
- intermediate pipe
- silencer
- flange for 50/ 70ccm (you can pick)
 
Fits:
- Rieju MRT 50
- Beta RR 50?