I'm getting another XF, but a 6 speed this time. I plan on boost of some sort. Not sure what the hold up has been with BEGI other than a scam, guys have been boosting NA SLK320's. Surely Eurotune or Kleeman has a way to open the ECU for reprograming the fuel maps? Kleeman's KD box should allow for tuning to mild boost with out a huge headache.

The only thing preventing boost is the ECU, if I have to, I'll go stand alone. I run a stand alone on my Porsche. Apexi makes a system that will piggy back with the M112 engine.