Hey all - I bought a JB4 last summer and it's working great. I took it off the car and got a new vehicle. It was used for 6 months, no issues.
http://www.burgertuning.com/N55_Stage2_Jb4.html
I believe it has the Type A harness - it was on a 2011 535i. It was startlingly fast!
ALSO COMES WITH DATA CABLE! YAY!
PM if interested and with a REASONABLE offer. I am in Hillsboro, Oregon but will ship to anywhere