Version 1.0: 1.27-1.36 ats game version - Hi guys this mod change standart scs İnternational lonestar engine sound with real sounds. İnternational lonestar: - Cummins x15 engine(2017) sounds added for vanilla cummıns x15 engines. - I dont touch orgınal engine sound its ISX15 engines sound(old). - Retarder sound added - Company truck sounds added. Note: ım workin on international A26 engine sounds for lonestar HAVE FUN!