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      01-14-2013, 07:34 PM   #4
cwg
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Drives: 2013 M3 ZCP. Jzb on black
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Location: Kailua, HI

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I find it hard to beleive that the DME no longer adjusts for lower grade gas with the cobb in place. The knock sensor and pulling of timing is a basic function of how the DME works. Agreed you should run the recomended 93 with the cobb but I don't beleive that cobb would have removed this basic function from the DME when they did their tune.
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