Orion V CNG and Orion VII CNG demonstrate their distinct exhaust notes here. First bus roars, second bus rings!
Model - 1999 Orion V 05.501 CNG 9852
Engine - Detroit Diesel Series 50G
Transmission - Allison World B400R
Model - 2004 Orion VII 07.501 CNG 7719
Engine - Detroit Diesel Series 50G
Transmission - ZF Ecomat-2 HP592C
Location - Schieffelin Place, NY
Route - Bx31
![](https://s2.save4k.ru/pic/Q7sS7Aul2Mo/maxresdefault.jpg)