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. Submit a screenshot of this mod! Submit a YouTube video.