I just sold my 335i today and the JB4 needs to go as well. Works great and has the latest software. Also included is the USB cable.
JB4 PnP (http://www.burgertuning.com/jb4_pnp_...nce_tuner.html
USB Adapter Cable
Selling Both - $415 shipped priority
PM for any other questions
PS: I AM IN SALT LAKE CITY AREA, AND CAN HELP INSTALL FOR LOCALS