Hi, 
DO NOT EDIT WITHOUT PERMISSION
To install

Installation In Detailed|  ( Follow in Order! --- OpenIV Required )*  
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+Add-On Installation:
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1. Go to => Grand Thef Auto V \ mods \ update \ x64 \ dlcpacks 

2. Drag and drop the "i20trg" folder which is located in the "Add-On" folder of the rar you just downloaded.

3. Now Go to => Grand Theft Auto V \ mods \ update \ update.rpf \ common \ data 

4. There you will find the dlclist.xml, Extract it somewhere and open it with any text editor software.
   and add this line in the bottom:

<Item>dlcpacks:/i20trg/</Item>






Use i20trg to spawn ingame or use a addonspawner.