BMS N63 Stage1 - Harness Type B (2012-2013) plus BMS USB DATA Cable.
Stage1 gains on the N63 is about 40whp range on pump gas. More info here:
http://www.burgertuning.com/N63_Jb_B...nce_Tuner.html
http://www.burgertuning.com/USB_Cable_Extension.html
Asking $350 free shipping within US.