ATS - CAT C15 6NZ Straight Pipe Sound V4.0

Version 4.0 Changelog:
-Rebuilt the entire mod (again)
-Yeah that's pretty much it

Feature:
-CAT C15 6NZ 435, 500, 550, 595, 625 engines with straight pipe sound
(625hp engine also replaced on SCS pete389 and kenworth w900)
-Smooth & Realistic engine & exhaust sound
-Custom sound attenuation for more realistic sound fade off

1.46-1.47

Authors: SlavJerry