I think Schomp quoted me $800 ish out of warranty. Too much IMO so I did it myself with that Harbor Freight blaster. Took me the better part of a day, but I did injectors also.
2007 335xi 6AT / Vishnu Procede V5 / Vishnu DCI / Vishnu Meth kit (PWM) / AR Catless downpipes / Borla racing pipes with Magnaflow muffler / Borla exhaust system / AMS intercooler
Best 1/4 time = 12.975 @ 107.15, 1.763 60' at Bandimere Speedway (5800' above sea level)