CAT 3406B Straight pipe sound

This mod is CAT 3406B straight pipe sound for SCS and modded trucks

Latest Version Feature

  • CAT 3406B 310, 360, 425HP and 525HP tuned engine with straight pipe sound
  • 3 stages jake brake
  • Custom sound attenuation for realistic sound from distance 
  • New improved exhaust distortions for realistic exhaust sounds
  • Cusotm sound orientations for realistic sound from different angles 
  • Included idle jake brake system
  • Included Customizable Additional Supported Trucks (CAST)

If you don't know what CAST is :

Quick tutorial on how to use CAST

  1. Goto def/vehicle/truck/
  2. Rename one of zcustom_xx into truck def name you want

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

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


  • Slav Jerry - sound samples, mixing and modding
  • SCS Software - sound samples
Slav Jerry Verified Creator
MIT License
Initial Release
Current Version
1.45 1.43 1.44
Last Updated
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.