Originally Posted by pbonsalb
Does the dynotesting above show that the 231E software is just as good as an Evolve tune on older software, or alternatively that an Evolve tune does nothing on 231E software?
It appears that 231E software may be more difficult to extract power out of.
I guess that's a good thing, I'd want the factory calibration to be as strong as possible. Thumbs up to BMW for making such a vast improvement on the later versions as compared to the earlier ones.