[jonfigueiredo1]

Bmw tech here, when a car comes in for regular service and we see the jb4, whether it be the harness or actual box we kind of just look the other way. Now if a car comes in with an engine malfunction and it's related to aftermarket mods then there's a problem. We had an f10 m5 in not too long ago with multiple malfunctions and BMW called us as we were diagnosing it asking if the dme had been tampered with. Now at this point we called the customer and confirmed it had been flashed. Cut to the chase. Customer was picking his car up within 30 min and never brought it back