lsd question

[Keep it clean]

Hey everyone, im kind of new to this. Im planning on starting an s14 project and looking into lsd. Can someone explain to me the advantages and disadvantages of it. Im going for a 300rwhp daily driver for drift and drag on weekends and plan on going ka-t. Any recommendations as to what I should do? I hear a 1.5 is good for what I am aiming for but I don't know brands or prices. Any help would be appreciated.