Thread: e90 335i build
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      08-18-2020, 12:40 PM   #3
MikeP335i
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Drives: 2009 335xi
Join Date: Sep 2018
Location: Annandale, VA

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I'd skip the mhd stage 2 and get a custom tune from motiv. Big difference in my car between the OTS and Motiv tunes. I'd also do the ethanol sensor and a flex fuel tune. Motiv can do that as well. You might need an bigger FMIC when you upgrade turbos.