If you watch all video you will see when i change the 730V8 engine to R420, the sound will be changed too, i tested it with Scania R2009 and with Streamline too.
Compatibility: ETS2 1.9.x
How to install mod for ETS 2:
- Download this mod.
- Extract it!
- Paste the .scs file(s) into your My Documents/Euro Truck Simulator 2/mod folder.