This mod is CAT 3406E with straight pipe sound for SCS and modded trucks
Version 1.0 Feauture:
-CAT 3406E 475-625HP and 800HP Tuned engines with straight pipe sound
-Custom sound attenuation for realistic sound fade off and distortion effect
-Custom sound orientation for realistic sound from different angle
-Custom exhaust distortion for realistic exhaust tone depends on distance and throttle pressed
-Special variable exhaust tones
-Included Customizable Additional Supported Trucks (CAST) in the mod
