Euro Truck Simulator 2 
American
Truck Simulator 
Cummins N14 Celect Plus Straight pipe sound
Slav Jerry
This mod is Cummins N14 Celect Plus engine with straight pipe sound
11,231 5.0
CAT C15 6NZ Straight pipe sound
Slav Jerry
This mod is CAT C15 6NZ engine straight pipe for some SCS trucks and many modded trucks.
16,868 4.8
CAT 3406E Straight pipe sound
Slav Jerry
This mod is CAT 3406E with straight pipe sound for SCS and modded trucks
12,527 4.7
Detroit Diesel Series 60 Straight pipe sound
Slav Jerry
This mod is Detroit Diesel 60 Series straight pipe sound for SCS and modded trucks
11,724 5.0
