I ended up getting a custom rom tune from F80 Paul with an extra slot and i'm impressed with it. Its a lot better than the OTS stg 2 flex tune. It pulls harder and makes more boost. I haven't had a lot of full ethanol testing, but i had some E55 in it and i was up to 25-26lbs of boost. Hopefully soon i will get it up to 80% and see where it is and get some dyno time with some varying ethanol ranges.
My tune is setup as slot 1 is a road course tune that is flex and then slot 2 is a street tune that doesn't limit the torque like the road course and runs more boost and timing.
Then if im going to some car events or racing i can reflash to my E80 custom full tilt tune.
I do have the bend calibration flex sensor kit.
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