If I am not mistaken (hopefully), ALL M5's should have the S63B44TU. Hopefully that is what you find. I think the S63B44 is what is in the M version of the X5 and has less compression, etc.
I think I threw up a little...
It does make me wonder if they changed something more minor (e.g. added pathway or software that is on the N63TU) at some point or maybe it takes a bit to start working?
Now I need to search if other M5 owners have this working or not...
I picked my September production M5 at a dealer and cancelled my December production (that just went into production) which is why I threw up a little when I started researching this technical upgrade (TU). If it is just software or an added pathway, no big deal.
Last edited by Glock 32; 12-06-2012 at 08:17 AM.