Engine sound pack for T800, W900 Updated to v2.5

What’s that sound pack adds to the game?
This mod adds those engines and their sounds in the game:
-Cummins ISX
-Cummins 444
-Cummins N14
-Cummins N14 Celect PLUS
-Caterpillar C15
-Caterpillar C15 Straight Piped
-Caterpillar 3406E
-Paccar MX series
-This mod comes with a separate mod to add realistic transmission, tires and wind sounds in the game.
Which truck are working with it?
-Kenworth W900
-Peterbilt 389
-Peterbilt 579 (partially)
-Kenworth T680 (partially)
-Kenworth T800 by GTMike
Update 2.5 (2017/03/05):
What’s new in this version?
-Added new Caterpillar C15 sound and engines. Note that the previous C15 sound is still available in the pack, just it is now called “Straight Piped”.
-Updated the separate asphalt /tires sound mod for the new 1.6 patch.
Sound mod works on both 1.5 & 1.6 patch.