Hello,

before you start to edit your files, i recommend this link: http://openiv.com/?p=1132
How to use OpenIV mods folder and keep your original GTA V files safe.

<-------------------------Advanced Installation Guide:----------------------------------->

Create a mods folder in your GTA5 directory, create a update folder in your mods folder.

Copy the newest update.rpf and put it in the mods/update folder. 

Done! Now you can follow the Instruction descriptions and install all the modifications.
The OpenIV.ASI & the ASI Loader + files in the GTA5 main directory must be installed to run this mod!


<-------------------------Advanced Installation Guide:----------------------------------->


Start OpenIV navigate to mods folder.

    update
    update.rpf
    common
    data
    levels
    gt5


Replace vehicles.meta

The vehicle.meta file replaced the Engine Sound your choice!


Have Fun with it.
Follow me on GTA5mods.com for newest updates.
https://gta5-mods.com/users/Rasputin