Cummins ISM Straight Pipe Sound - 1.44

This mod is Cummins ISM with straight piped sound for SCS and modded trucks

Version 1.0 Feature:
Cummins ISM 280-500HP with straight piped sound
Custom sound attenuation for realistic sound fade off with distortion effects
Custom exhaust distortion for realistic exhaust tone and works along with custom attenuation
Custom sound orientation for realistic sounds from different angles
Realistic turbo behavior
Included idle jake brake system
Included Improved Customizable Additional Supported Trucks (CAST) in the mod