Version 2.0 Changelog: Brought back SCS Peterbilt 389 samples with improved sound Updated engine information Supported more trucks Lot more improvements Included Customizable Additional Supported Trucks (CAST) in the mod If you don’t know what CAST is: A quick tutorial on how to use CAST 1. Goto def/vehicle/truck/ 2. Rename one of zcustom_xx into truck def name you want (optional, but should do) 3. Get inside that folder/engine/ 4. Open every c15a_xxx.sii files and look at line 3 5. change “mx13_xxx.custom.engine” to “mx13_xxx.(truck def name).engine” for every files in that folder and you should be good to go Version 1.5 Changelog: Updated for 1.42/1.43 Rebuilded sound (also removed Kriechbaum’s assets) Included fan sound with realistic behavior Included custom sound orientation for realistic sound from different angle Lot more improvements Version 1.2 Changelog: New exhaust samples Little tweak and improve [8/23/2021] This mod is stock sound for Paccar MX-13 engines in some SCS trucks and modded trucks and like always if you want this mod works on any modded truck you can tell me Feature: Paccar MX-13 engines with Stock sound Realistic exterior/interior sound Custom sound attenuation for realistic sound fade off Credits: Slav Jerry – Sound modding Kriechbaum, SCS Software – sound samples