Descriptions:
Version 2.0:
Rebuilt the entire mod
Idk that first part already told everything

Features:
Cummins L10 240-310HP and 500HP tuned engines with straight pipe sound
Custom sound orientation for realistic sound from different angles
New Improved sound attenuation for realistic sound fade off and distortion effects on distance
New Improved exhaust distortion for realistic exhaust tone
depends on throttle pressed, rpm, intake pressure and works along with sound attenuation
Included Customizable Additional Supported Trucks (CAST) in the mod

Quick tutorial on how to use CAST
1. Goto def/vehicle/truck/
2. Rename one of zcustom_xx into truck def name you want
(optional but should do)
3. get inside that folder/engine/
4. Open every l10_xxx.sii files and look at line 3
5. change “l10_xxx.custom.engine” to “l10_xxx.(truck def name).engine” for every files in that folder
and you should good to go

Credits
Slav Jerry

Authors:
Slav Jerry

Download Link 2: Download mod