CAT C15 ACERT Straight pipe sound v4.0 Mod

ATS Mods | 24 Jul, 2026

CAT C15 ACERT Straight pipe sound v4.0 Mod

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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

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

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