I've got a 325 that i'm running a welder on now and I don't think i'm cool enough so am after another LSD, preferably a 3.0 M3 one, I had a 3.2 EVO one in my last car which was perfect but obviously required the whole subframe to fit, so after something medium case. Can collect with cash if within a sensible distance.
Looking for something a little (a lot) cheaper ideally, I sold a complete M3 EVO subframe with lsd, brakes, arms etc etc with a modified input flange to fit a non m3 for £450 last week.