Proudly introducing the CAT C-15 MBN Sound & Engine Pack. All sounds were professionally recorded from a Peterbilt 378 which has 5-inch straight pipes and a 475HP CAT C-15 MBN engine. – Full engine sound set professionally recorded from the engine, intakes, and exhausts. – Complete engine RPM spectrum recorded, producing a very detailed sound. – Authentic jake brake sound, including 3 stages. – 475, 500, 550, 600, 625 HP engines – Will work with all default trucks and popular modded trucks – Open Definition files for modders. – Full support for Convoy mode. Compatible with: ATS v1.46 Credits Robinicus, zeemod, Harven, Full Tilled Gaming