Hello, I have been trying to stream vehicle engine sounds, with no success. I have two .rel files, one named buffaloac_sounds.dat54.rel and the other named jmusms_game.dat151.rel. Is there even a possibility to stream these sounds or not?

you can stream .rel files if you look at this release Custom Engine Sound Pack [Add-On SP / FiveM | Sounds] - GTA5-Mods.com it will show u how the fxmanifest is constructed and what data mounters to use credits to Aquaphobic for this release