What: JB4 Stage 2 with A harness
Firmware: N55_081712.HEX (that's firmware from mid-August, for an N55 that's currently loaded on it)
Condition: new? not really new in box, but you know.. its been installed for a little less than a year so the harness has a little bit of dirt on the outside? The thing's the same as it arrived to be honest, I didnt modify anything to run wiring to ground.
Install: Takes about 2 hrs the first time figuring out how the lego bits come apart on the car. Taking it out took me about 15 minutes after the motor cooled off.
Includes: JB4 stage 2 (preloaded with the above mentioned firmware), USB data cable.
Price: $425 (shipped anywhere in the lower 48)
Why sell?: I bought it about a year ago and put it on my new 335 at the time. Ran it for a year flawlessly. It srsly turned into the most fun car I've ever owned.
Anyway, putting it up for sale as I dont really have a place to reinstall it in Manhattan and with work being busy this fall I figure someone elce could be enjoying it.
PM me with any questions. If you want pics of the connectors and stuff to make sure it's all straight and legit I'll post them up. Just ask.
Some more info on the Stg2 JB4 here:
http://www.burgertuning.com/N55_Stage2_Jb4.html
Some more info on the tuning and stuff (for N55) here:
http://www.n54tech.com/forums/showthread.php?t=13189
PS: HOLY F***ING GOD IS 100 OCTANE AWESOME!!!! 
pps: mods, apologies if I shouldn't be x-posting a FS post from the local forum... wasn't sure of the etiquette here.