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I fear self-tuning is going to be a slippery slope of always tinkering to see if it can be made to be better.... mix that in with manipulating excel data, and I can't think of anything else that could be more enjoyable!

Yeah I've tried the torque reductions in BM3, but with the stage 2+ OTS tune, it only works in 1st. I've tried with XHP as well, but again it only worked in 1st gear. It works with the stock BMW tune perfectly though. The theory from XHP was the DME wasn't reacting fast enough to regulate the...

I'm tentatively taking my first step into self tuning, and I really appreciate the time and effort put into these posts, as well as the hours of testing and research that has enabled you to have the findings to share. It's a massive help! I'm running an F22 M240i, and unfortunately that means I...