This engine pack modifies the Cummins ISX15 engine torque curve and gear shift points for the stock trucks. It doesn’t modify the sound effects or add additional variants of the engine. The pack includes the 450hp, 500hp, 550hp and 600hp variants for the following stock trucks:
Kenworth W900
Kenworth T680
Peterbilt 579
Peterbilt 389
International LoneStar
International 9900i
Volvo VNL
For ATS 1.45
Credits:
davidsteele1975