I purchased this M42 ECU and chip from bwawuz02 for $160 shipped:
Title says it all. Known working DME with MarkD 91 octane chip in it for an E30 318i/is. $160 obo shipped
http://www.m42club.com/forums/showthread.php?t=15022He shipped it quickly, which was great.
I received what seems to be a good clean ECU, which was great.
I decided to pop the cover off the chip and take a quick look at it. It did not appear to be a genuine MarkD chip.
I Google'd MarkD chips, and found lots of images of genuine ones.
I contacted MarkD and asked if this appeared to be a genuine one. He said it's definitely not one of his.
I contacted bwawuz02, who confirmed that it is not a genuine MarkD chip, but a copy that he made of a MarkD chip.
He has agreed to refund me $160 once I return the ECU and fake MarkD chip.
Thanks.