Thread: Best ECU tune for my F12 M6?
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      02-15-2018, 06:30 PM   #10
BMWDriverX
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Drives: G12 750i X-Drive
Join Date: Jul 2017
Location: CA

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Mission Performance has my vote! I have run piggybacks and other flash tunes on the S63TU, MP has been flawless, great customer service, and produces the most power.
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