Features:
- Includes ISX12 370 HP and 425 HP engines
- Includes ISX15 450, 500, 550 and 600 HP engines
- Adds Cummins ISX Signature 600 engine
- Adds Cummins ISX Signature 720 Chipped engine
- Stock, Open Pipes and Straight Pipes sound variants
- Engine sounds work in convoy mode
- Sounds based on audio work by Kapitan Kriechbaum and Odd_Fellow
- Includes a Truck Support Listing file showing compatible trucks
- Stabilized brake intensity on ISX Signature variant
- Adjusted neutral RPM and RPM limit
- Audio converted from OGG to WAV for better stability
- Added support for Volvo VNL 2025 and Western Star 4900/WS 4900
This pack brings the Cummins ISX engine family into American Truck Simulator, offering a range of horsepower options from the ISX12 and ISX15 lines, plus two specialized ISX Signature engines built for heavy hauling.
Each engine comes with Stock, Open Pipes and Straight Pipes sound variants, giving players a choice of exhaust tone. The sounds are based on audio work by Kapitan Kriechbaum and Odd_Fellow, and they also play correctly during convoy mode.
Version 2.4 improves the ISX Signature engine definitions with more stable braking, adjusted RPM settings, and fixes to prevent console alerts. It also adds compatibility with the Volvo VNL 2025 and Western Star 4900/WS 4900 trucks, along with new exhaust sounds for the Open Pipes variant and more stable WAV audio files.
This pack suits players who want more engine variety and realistic sound options for their trucks, especially those running heavy or oversized loads.
