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CAT C15 ACERT Straight pipe sound

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This mod is CAT C15 ACERT Straight pipe sound for some SCS trucks and truck mods


Latest Version Feature:

-CAT C15 ACERT 435-550HP and 600-625HP King of The Hill with straight pipe sound

-Realistic compound twin turbo behavior

-Alternative single turbo variant including 650HP tuned engine

-Automatically activated engine fan sound

-Gearbox whine sound

-Sound attenuation effects for realistic sound fade off from the distance

-Sound distortions and directional effects for realistic distortions from different positions around the truck


Credits:

Slav Jerry - sound samples, mixing, mastering

4.0
2026-07-24
Supported Game Versions: 1.56 1.57 1.58 1.59 1.60 614

Version 4.0.1 Changelog:

-Total mod rebuild

-Included single turbo conversion variant

3.0.1
2024-02-04
Supported Game Versions: All Game Versions 4515

[2/4/2024|1.49]

Version 3.0.1 Changelog:

-Fixed missing exhaust sound

3.0
2024-02-03
Supported Game Versions: All Game Versions 169

[2/3/2024|1.49]

Version 3.0 Changelog:

-Rebuilt sound

-Yeah that's it, also some minor changes

2.0
2022-11-12
Supported Game Versions: 1.46 1.45 1.44 1.43 2023

[11/12/2022|1.46]

Version 2.0 Changelog:

-Basically rebuilt the whole mod

-Made CAST more convenience

-Max volume regulation to reduce chance of sound flickering and prevent too loud sound 

-Included idle jake brake system


How to use idle jake brake:

1. hold light horn button (J button) for 1 second, then release

2. tap light horn button once again, and idle jake brake should be engaged

3. Repeat the same process to turn off


idle jake brake system doesn't compatible with mods that contain interior switches sound

(Sound fixes pack is exceptional but keep piority under my mod)


[1/11/2022|1.43]

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 :

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 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

Slav Jerry Verified Creator
Follow
Current Version
4.0
Compatibility
1.56 1.57 1.58 1.59 1.60
Last Updated
2026-07-24
Downloads
7,321
Rating
License
MIT License
Initial Release
2022-11-12
Discuss on Forum Documentation Join Discord Buy Me a Coffee Paypal.me Patreon
4.0
2026-07-24
Supported Game Versions: 1.56 1.57 1.58 1.59 1.60 614

Version 4.0.1 Changelog:

-Total mod rebuild

-Included single turbo conversion variant

3.0.1
2024-02-04
Supported Game Versions: All Game Versions 4515

[2/4/2024|1.49]

Version 3.0.1 Changelog:

-Fixed missing exhaust sound

3.0
2024-02-03
Supported Game Versions: All Game Versions 169

[2/3/2024|1.49]

Version 3.0 Changelog:

-Rebuilt sound

-Yeah that's it, also some minor changes

2.0
2022-11-12
Supported Game Versions: 1.46 1.45 1.44 1.43 2023

[11/12/2022|1.46]

Version 2.0 Changelog:

-Basically rebuilt the whole mod

-Made CAST more convenience

-Max volume regulation to reduce chance of sound flickering and prevent too loud sound 

-Included idle jake brake system


How to use idle jake brake:

1. hold light horn button (J button) for 1 second, then release

2. tap light horn button once again, and idle jake brake should be engaged

3. Repeat the same process to turn off


idle jake brake system doesn't compatible with mods that contain interior switches sound

(Sound fixes pack is exceptional but keep piority under my mod)


[1/11/2022|1.43]

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 :

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 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

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Slav Jerry - All rights reserved. Any reupload or redistribution of this file without the author's prior written consent is forbidden.
This American Truck Simulator add-on was created by Slav Jerry and shared in Sounds for American Truck Simulator.
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