Detroit Diesel 60 Series Sound & Engine Pack v2.1 for American Truck Simulator (v1.39.x, - 1.41.x)

This pack contains engine sounds only. No other sounds are included.
All sounds were recorded from a Freightliner FLD120 with a Detroit Diesel Series 60 engine, equipped with straight exhaust and a muffler, with approximately 6 onboard perspectives, including microphones mounted on the engine, exhaust, and in the cabin.

The sound settings include customizable attenuation curves for the engine and exhaust, meaning the volume of each sound source can be heard differently at various distances or when the vehicle passes by the camera.

Mod features version 2:
- Added an engine variant with standard factory exhaust and muffler.
- Added randomization for clutch-fan and startup delay.
- Added multi-stage braking sounds.
- Improved blending of no-load and load exhaust sounds, engine and exhaust volume attenuation.

Engines included:
DD60 380 (12.7L) / DD60 380 (12.7L) (muffler)
DD60 455 (12.7L) / DD60 455 (12.7L) (muffler)
DD60 425 (14.0L) / DD60 425 (14.0L) (muffler)
DD60 515 (14.0L) / DD60 515 (14.0L) (muffler)
DD60 619 tuned (14.0L) / DD60 619 tuned (14.0L) (muffler)

Compatible with the following trucks:

Default:
Kenworth T680, Kenworth W900L, Peterbilt 389, Peterbilt 579, International Lonestar, Western Star 49X, Freightliner Cascadia 2019

Modified:
Freightliner Classic XL (by Jon-ruda),
Peterbilt 389 (by Jon-ruda),
Kenworth W900 Highway Killer (by Jon-ruda),
Kenworth K100E (by Overfloater),
Peterbilt 389 Modified (by Viper2),
Kenworth T800 (GTM),
Kenworth W900B (GTM),
Peterbilt 567 (GTM),
Freightliner FLC (by XBS)

Watch the mod in action in the video.