MOD LINK : https://www.gta5-hub.com/vehicles/bmw-m8-competition-mansaug

Installation:
update\x64\dlcpacks\mansm8\dlc.rpf\x64\vehicles.rpf\
Open mansm8.ytd
Find m8_sign_1 and replace it or add with m8_sign_9.png

Or replace mansm8.ytd

This is my first livery, hope you enjoy :)