Uploaded January 2022 | Updated September 2026, 6 hours ago

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This mod is CAT C15 ACERT engine with straight pipe sound for some SCS trucks and a lot of truck mods

Version 1.0 Feature:
-CAT C15 ACERT 435-625hp and 650hp tuned engines with straight pipe sound
-Realistic turbo behavior
-Realistic intake behavior
-Custom sound attenuation for realistic sound fade off
-Custom sound orientation for realistic sound from different angles
-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
If you don't know what CAST is :
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 c15a_xxx.sii files and look at line 3
5. change "c15a_xxx.custom.engine" to "c15a_xxx.(truck def name).engine" for every files in that folder
and you should good to go

Credits:
Slav Jerry - sound modding and samples
SCS Software - engine samples
LoaderSaints - CAST idea

Download link:
forum.scssoft.com/viewtopic.php?t=307503

Another mod used in the video: Interior attenuation fixes pack V1.2
forum.scssoft.com/viewtopic.php?t=306768