yeah, but i did it a long time ago. still need to do it on our X3.
the valeo SMF kit is exactly the same weight as the stock components, so it's not really a 'performance' upgrade but more of a 'preventative' upgrade. :)
LSD is absolutely one of the best upgrades - especially if you shorten the ratio to something like a 3.46. and you're fortunate to have diffsonline right next door!
yeah. and to be honest, i had zero need for a clutch stop either until i drove BP's car recently, now i want one. :)