JUST DO IT.

I ALREADY DID IT!

INSTALLATION:

1. Open OpenIV
2. Go to GTA V/x64v.rpf/models/cdimages/streamedpeds_players.rpf/player_one/
3. Back up all files you will be replacing
4. Enable edit mode.
5. replace the named file for whatever shirt. *EXAMPLE "uppr_diff_004_a_uni.ytd" simply drag and drop once in editor mode on Open IV then tahhdahh you now have a new shirt!