Does anyone have any experience with Performance Gearing differentials for BMWs?
http://performancegearing.com/
Thinking about going with one of their LSDs for my STX/T4 128i build and I am looking for some second opinions.
I have also considered Diffsonline, but I can get a much better price on the performance gear differential if the performance is similar.
Additionally, if anyone has experience with Mfactory's plate LSD for BMW applications, would also love to hear about that.