GTAV\mods\update\x64\dlcpacks\patchday2ng\dlc.rpf\x64\levels\gta5\_citye\scentral_01\sc1_occl.rpf\

if you notice occlusion glitches, try this installation path-
GTAV\mods\x64k.rpf\levels\gta5\_citye\scentral_01\sc1_occl.rpf\