Cummins ISX/X15 Straight pipe sound V1.2 1.40 - 1.41

Version 1.2 Changelog:
-Little improvement on exhaust sound
-New jake brake and blow off sound
-Sound will be replace on GTM Kenworth T800 Cummins engines

Version 1.1 Changelog:
-Fixed International Lonestar engine error
-That's all

This mod is Cummins ISX12/15 and X15 engines with straight pipe sound
This sound will be replace Cummins engine sounds in SCS trucks and selectable engines in modded trucks
(If the mod doesn't work on any truck you can tell me to make this mod support other modded trucks)

Feature:
-Cummins ISX12, ISX15, X15 370-650hp engines with straight pipe sound
-Dynamic sound focus for more rumble exhaust sound
-Custom soun attenuation for better and realistic sound fade off