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      07-15-2009, 10:17 PM   #21
leemik
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Drives: 2013 LRP M3 Coupe
Join Date: Jan 2009
Location: Quincy, MA

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2013 BMW M3  [4.67]
I had the Dinan Software installed recently as well.. Let the ECU learn for a week or so.. I can say that I do feel a difference in how the car accelerates.. It's much smoother and I do feel it pulling slightly harder than before. I was also getting what i thought was slight knocking at midrange RPM before the software.. I don't hear any knocking anymore after the software upgrade..

I don't think it was bad gas as I tried different stations always with same slight knocking..(I have exhaust and intake mods) could it have been that the stock ECU couldn't account for the mods and give more fuel?

dunno.. I'm satisfied.
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