E46 M3 LSD FOR RACE CAR, BEST DIFF? BEST PLACE TO GET ONE?

[w9lje]

Hi Guys,

I am after a decent LSD for my E46 M3 Race car, been advised by many that the best ratio to get is a 4.1,

Can anyone recommend a good reasonably priced place / manufactourer to get one from?

Wouldn't even mind grabbing a second hand one and buying the gears separately if anyone knows of someone selling one?

Cheers

Daniel