Cummins Isx/X15 Straight Pipe Sound V3.0

Version 3.0 Changelog:
Rebuilt the ENTIRE mod
–Separated Engines And Sounds Into 4 Variants:
ISX CM870 400, 450, 500, 525, 550, 565, 600
ISx EGR 400, 450, 500, 525, 550, 565, 600
ISX CM2250 450, 500, 550, 600
X15 400, 450, 500, 525, 565, 605
Included idle jake brake system
Included Improved Customizable Additional Supported trucks (CAST) in the mod
Problems? Let us know in the comments! Your feedback helps modders improve the mod. Also, be sure to check the comments section - other players may have already shared solutions to common issues.