[4/7/2022|1.43]
Version 2.0 Changelog:
-Rebuilt sound from scratch
-New exhaust samples
-Included a lot of new sound systems
-Included idle jake brake system
-Supporteed more trucks
-Updated engine informations
-Included Customizable Additional Supported Trucks (CAST) in the mod
If you don't know what CAST is :
https://steamcommunity.com/workshop/filedetails/discussion/665335536/3156453942274154402/

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 8v71x.sii files and look at line 3
5. change "8v71x.custom.engine" to "8v71x.(truck def name).engine" for every files in that folder
and you should good to go

How to use idle jake brake:
1. Hold J for 1 second and release (release in 1.5 seconds) and idle jake brake should be engaged
2. Repeat the same process to turn off 

Note: idle jake brake system will not work with some kind of interior sound mods

[10/7/2021|1.41-1.42]
Version 1.5 Changelog:
-New exhaust samples
-Included blower sound
-Support more modded trucks
-Included custom sound orientation for more realistic sound from different angle
-Updated & Improved engine information
-Many more improvements

[8/26/2021|1.41]
This mod is Detroit Diesel 8v71 sound & engines in some SCS and modded truck

Feature:
-Detroit Diesel 8v71 318hp, 385hp engine with straight pipe sound
-Detailed engine & exhaust sound
-Custom sound attenuation for realistic sound fade off
-Sound focusing system for smoothly sound accelerate 

Credit:
Slav Jerry - sound modding & samples