Been twice to dealer including once with oil change. Had no problem with procede installed. Too much of a pain to take out and put back. If you do this of course clear codes and leave it in map zero.
Koni sport, BMW performance springs, M3 arms and sways front and rear, M3 subframe bushings, Velocity toe arms, M3 front strut bar, Cobb, ETS FMIC, Vishnu charge pipe, RPI scoops, M3 steering wheel, City Vision angels, CDV delete, Advan RS 18 inch, Pilot SS