This mod added some horsepower to the Kenworth T680 15si Engine (550hp engine) for the new American Truck Simulator. In the next days I will release more mods for this, as well new transmissions!:
1. Just put this file to your mod folder under C:UsersYOUR_USERNAMEDocumentsAmerican Truck Simulatormod
2. Open game and go to Mod Manager
3. Activate the Kenworth_t680Speedmod.scs, then save changes.
4. Load your Savegame. It might tell you “your game could be damaged by activating this etc.” Just press load and ignore it, it will work!
5. DONT USE THIS ONLINE (could cause bans, no guarantee!)
6. Have fun 🙂