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I had it without the 3 stage it ran very good of course I understand it's not ideal for what it's tuned for. The car has a service engine soon light after resetting adaptations but no codes in the DME at all except for the one you get with the 330i tune. The 4 o2 codes went away. The light wouldn't go away by clearing. I'll check with him in a few days and scan the car again
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