Thanks for downloading this livery if u did download it, it's because you already have the car installed 
if you didn't have the car yet, follow this link to download it 

https://www.gta5-mods.com/vehicles/toyota-gr-86-rz-add-on-tuning-template-fivem-rhd



To install the livery:

go to mods/update/x64/dlcpacks/gr86/x64/vehicle.rpf
an,d just drag and drop those 3 .ytb files and you're done :)