This mod is 6-71 Straight pipe sound for SCS trucks and truck mods

Version 1.0 Feature:
-Detroit Diesel 6-71 230-310HP and 6-71TI marine engine with straight pipe sound
-Max volume regulation to reduce chance of sound flickering and prevent too loud sound 
(Highly recommended to put engine, exhaust, turbo volume slider to max)
-Featured full 3D directional sound for extra realistic feeling of sound
-Custom sound attenuation for realistic sound fade off and distortions
-Custom exhaust distortions for realistic exhaust tone
-Included idle jake brake system
-Included Customizable Additional Supported Trucks (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

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

Credits:
Slav Jerry - sound modding and samples