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      05-07-2014, 03:02 PM   #12
Spinny02
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Drives: '14 M5 CP Dinan Stage 2
Join Date: Jun 2013
Location: Houston, Tx

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Quote:
Originally Posted by TheRedBaron
Is the CEL going to cause any issues?

I pulled the trigger on some Cat-Less Downpipes. Just want to make sure I won't confuse the ECU into making fuel trim changes.
Yes catless will trigger cel and cause some issues at under hard full acceleration .

You will need a CAN tool that is no longer sold by BMS. Or just drive moderately to avoid the malfunction cel.

I am sure the guys with the catless will chime on too.
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