Best to call Mark at the Malvern Service desk for the set-up info - I do not have all the info of what was done - but was taken back to the default setting. I can only repeat what a difference this made to my M3.I think u would need specialist set up kit - as 3ws are IMO difficult to set up with 4w kit.

I have seen posts on here about M3s Understeering - a sure sign of wrong tracking/set up IMHO :))

My car will oversteer slightly now if pushed hard out of a turn or on a wet road - but this is v v easy to correct on throttle/steering - very well behaved:))So it feels "right" now :))

cheers.N

Hope all this helps!

Neil