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      02-13-2019, 11:27 AM   #8
Korvo
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Drives: 2014 335i M-Sport
Join Date: Jun 2018
Location: Minneapolis, MN

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I'm surprised that nobody has mentioned that a catless DP will cause a CEL. Only certain catted DP's won't cause a CEL, Fabspeed being one of them.

Any flash tune can remove the CEL, but since you mentioned being stock, you need to consider this.
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2014 335xi M-Sport 6MT: Estoril Blue II, MHD Stage 2+ , Dinan Exhaust, Dinan CAI, ER Catted DP, ER Chargepipe, AA FMIC.
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