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      08-30-2021, 08:11 PM   #5
M302_imola
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Drives: '15 X5 35i Xdrive Mineral Whit
Join Date: May 2018
Location: Tennessee

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Going a step colder is only recommended w/ the BM3 Stage 2 tune, not stage 1. That being said, I'm running stage 2 93 BM3 tune on OEM plugs right now, but I do plan on changing to a step colder in the next couple of months.
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