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Originally Posted by Bubbles
Interesting. Why would BMW switch the tune unless internals changed? We aren't talking slight tweaks but a significant change. Thanks for posting.
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I don't have a good answer to this. I cant think of a good reason to bother tweaking the software unless there was a driveability issue. There haven't been any as far as I know. Although, IIRC the DME software was updated as part of the solution to the DCT lagging issue.
I would consider these to be slight weaks though. The car is making 5% more power, not a huge amount but definitely noticeable. The software is the reason IMO that people generally believe the later cars to be stronger.