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      05-24-2019, 08:44 PM   #5
amw896
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Drives: 2015 BMW M235i
Join Date: Feb 2016
Location: ontario

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2015 BMW M235i  [10.00]
Quote:
Originally Posted by Poochie View Post
Yes, that's the biggest advantage of flashing tuning and only reason I would even consider one one over my Dinan S1 piggyback.

Most tuners gives you a check box option to disables the O2 sensors, so permanently no CEL, even with a test pipe.
Definitely not the biggest advantage over piggyback. It is a nice feature though.
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