Ahoy.

Install:

Using OpenIV, go to

C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V\update\x64\dlcpacks\patchday6ng\dlc.rpf\x64\models\cdimages\patchday6ng.rpf

and, in edit mode, open the "texture dictionary" file and replace the old textures with the new ones

from this download.