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Originally Posted by F10m513
Which tune would you recommend ? I’m planning on getting a tune this month but cannot decide. Was leaning towards RKTUNE. I’m completely stock and plan on staying stock but would like a little more power
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I have a 2013 M5 (F10) and the stock tune was pretty crappy when I datalogged. AFRs were too high at WOT (14-15), ignition timing was all over the place, and isolated knock detection at part throttle (could be false knock).
The OTS Stage I 93 octane map was only slightly better. AFRs still high for a turbocharged engine (13s). Ignition timing values were slightly lower than the stock tune, but still not consistent.
I requested a custom tune from JordanTuned a few minutes ago. I was going to hold off, but I was not happy with my datalogging numbers. Remember the OTS maps are meant to fit a wide range of vehicles, fuel qualities, and driving conditions. Nothing really beats a custom tune in my opinion.