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      09-28-2019, 08:37 AM   #5
VisualEcho
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Drives: '18 M2 6MT
Join Date: Sep 2019
Location: Missouri

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2018 BMW M2  [10.00]
CELLS - Literally the little connected boxes inside the converter.
CEL - Check Engine Light

The factory converter has 750 cells, and is therefore more restrictive than the after-market converters, which usually have 200 cells.

A 300 cell converter will not usually cause a check engine light, but all but 1 (Fabspeed) 200 cell converters will cause a check engine light.
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