Version 3.0 Changelog: Basically rebuilt the entire mod (Big thanks to Louisiana Truckspotting for sound recording) Included idle jake brake system Included Customizable Additional Supported Trucks (CAST) in the mod 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 Credits Slav Jerry