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Originally Posted by Fenerbahce
People seem to throw around the acronym “OEM” when talking about these aftermarket tunes, but I’m not sure everyone knows what that actually means. Neither BM3 or BPM is an “Original Equipment Supplier” to BMW.
Are these tunes exactly the same tune as that used by BMW, or are these simply each tuner’s effort to create a map that’s as close to the BMW version as possible? I’ve researched but can’t find a clear answer. It seems like these are more like an approximation rather than actual CS tunes, correct?
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I believe its an approximation but I will have the experts comment.
What if BPM or BM3 take an actual M3 CS flash backup on that car and restore this flash backup to a non CS M3. Will this be considered an OEM CS tune?
Hopefully BPM or BM3 can answer these questions.