Further details from Terry @ BMS:
Another great track day at Famoso today. Really good turn out with some quick supercharged M3s, the normal crew (Serg, Adam, Eric, etc), another tune/dp M5, and even a tune/downpipe X6M.
I ran the new M5 today which is equipped with our Stage1 tune and a few gallons of 100 octane mixed with 91. And it was hauling ass all day. Best run was firstname.lastname@example.org with a weak 1.97 60'. Lots of 11.5@127 runs. Can't wait to get the ER downpipes on to see how these times improve.
Also had the misfortune of losing to a very quick E63 AMG on his way to a 130mph trap.
Also since I had the VBOX for one of the runs I remembered to go back and check the 0-60 times, etc, after the run. I think these were from one of the 11.5@127 runs. This car is seriously fun.