I have tried modifying the EUP vests with new textures, HOWEVER, it says to locate the models in the EUP folder in this path:
Grand Theft Auto V\update\x64\dlcpacks\eup\dlc.rpf\x64\models\cdimages\eup_componentpeds
I don't seem to have an eup folder in that path, and I tried the other path, which did contain an EUP folder.
Despite replacing the textures on the vests, none of it is working, and I keep getting the same default EUP vest.