@Reacon According to my knowledge is that L.A Billboard 4.0 is a massive pack including R.C.A & Venice beach and several other mods put together, its stated in the mod's description. But thanks for the suggestion 
@ikt Thanks for all the recommendations, will check them out. Nope what I know is that Ripplers Realism alters weapons and impacts but not blood related effects.
@ArmaniAdnr Yea it does sound like a lot of work but I do favor realism as well so I might just do it :D.
Does 4K Blood only replace the texture of the blood or alters other things such as the looks of wounds,
drips and pools?
Ikt suggested the same mod as well, sounds like a good mod though I never heard of it before so will
definitely check it out.
RCA is included in the massive L.A Billboard pack that I already installed so just go for that instead.
Yea I know its not possible to list all realistic mods out there
but just thought about creating a topic to
see what other mods people might be using that am not aware of.
Am creating my own vehicles dlcpacks as well aside from this but damn 26GB (mostly vehicles) am not even close to that hahaha. Btw according to your knowledge does handling affect the car's suspension as well or only alters speeds acceleration and such?
Thanks.