CAR FILES 
mods\update\x64\dlcpacks\mpstunt\dlc.rpf\x64\levels\gta5\vehicles\mpstuntvehicles.rpf\

CUSTOM FX 
mods\update\x64\dlcpacks\mpstunt\dlc.rpf\x64\audio\sfx\dlc_stunt

For this, follow the path, click on new > import open formats > select tyrus.oacmake sure the OAC and the 
sound folder are in the same folder, better if you put it in your desktop, and check the sound files to veify you 
did it right ^^

