YoloBus Orion V CNG #715 on the 215 (take off)

Wow this sounds sweet at take off I guess you have to be close up on these to hear them a bit more loud and clear. These were originally L10G and ZF HP-590 powered before the retrofit combo they received a few years ago.

2000 Orion V CNG
Engine: ISL-G
Transmission: B400R
Cylinders: Inline-6