My Mono g/s runs up to 105 Mph on the clock. 100GSPD pulls to around 125 on the clock but the speedo was something like 14MPH out when checked on the dyno. so around 110 Mph which is the quoted figure by BMW, you will be virtually hitting the red line in top to get this though.
bugger looks like the fd i fitted a while ago is off an 80 then and i asked MW for the correct one its taken me nearly 30k miles to notice so i dont suppose it realy matters