CUMMINS ISX/X15 STRAIGHT PIPE SOUND V3.0 Mod
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