If your not bothered about noise on turning and want quite an aggressive lsd then cusco is very good. I have a cusco MZ 1 way but it is extremely clunky slowly driving around corners and roundabouts. There is a few been up for sale recently on the forum. There are lots to choose from though from Kaaz-clutch type, TRD-clutch type, Cusco-clutch type, Quaife-mechanical*considered by many as extremely good and quiet*