This mod is Cummins N14 Celect Plus engine with straight pipe sound

Latest version feature:

-Cummins N14 Celect Plus 435-525HP and 600HP tuned with staright pipe sound

-Realistic turbo behavior when start, stop, no throttle, jake brake and blow off valve engage

-Included 3 stages jake brake

-Included idle jake brake system

-Custom sound attenuation for realistic sound fade off

-Custom sound orientation for realistic sound from different angle

-Custom sound distortion for realistic exhaust tone depends on how much throttle pressed

-Included Improved Customizable Additional Supported Trucks (CAST) in the mod

If you don't know what CAST is :

https://steamcommunity.com/workshop/filedetails/discussion/665335536/3156453942274154402/

Quick tutorial on how to use CAST

1. Goto def/vehicle/truck/

2. Rename one of zcustom_xx into truck def name you want

and you should good to go

How to use idle jake brake:

1. hold light horn button (J button) for 1 second, then release

2. tap light horn button once again, and idle jake brake should be engaged

3. Repeat the same process to turn off 

Note: idle jake brake is not compatible with the mods that have interior switches sound

(sound fixes pack is exceptional but put my mod on top piority)

Credits:

Slav Jerry - Sound modding and samples