Installation: 

1: Install this mod: 
https://www.gta5-mods.com/player/mai-outfits-addon-or-replace 

2: Extract the "uppr_diff_000_b_pak.dds" texture 

3: Add the extracted texture to "MaiLuxury.ytd" using OpenIV

Credit for Mai Shiranui goes to alex189 and saldin93