hi, I m Kev, I m new here.

wanna to know about the choices of LSD for wrx.

let say, Cusco 1 way, 1.5 way. What are the differences between them with the stock one on track use or street use?

Does LSD relates to the locking effect, ramp angles, and the pre-load on the clutch (Exedy, ACT)?
let say..how the pre-load on the clutch is adjusted in order to provide how much locking effect..

Is LSD something need maintenance very frequently?