Originally posted by Vapor
ITR LSD is your cheapest bet, but it's not the strongest or most aggressive diff out there.
Kazz is next up, clutch pack requires special fluid, and they tend to be rather noisy, but also very aggressive. For the serious driver.
Quaife is around 850, uses stock fluid, is quiet like stock, but not as aggressive as Kazz. Haven't seen one break yet.
How much would installation cost?