Volvo VNL sound mod 1.34

Volvo FH sound mod which is made of the basis sound of the Renault Premium, Renault and Volvo using the same engines and the sound is a little different but most of the people don't hear the differents, so this mod contains one Volvo engine sound, please do not ask for a D13 or something, it's a waste of time for me to make a sound which is almost compare to each other.

20.02.2019: reworked the 1500rpm exhaust sound file