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      08-01-2019, 02:43 PM   #22
Dav3
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Drives: G87 M2/E89 35is/F21 M140i/GT4
Join Date: Oct 2016
Location: Europe

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Quote:
Originally Posted by Big Fabri View Post
that is what i always thought but someone , somewhere told me that the ops has a sensor which reads how fast the flow goes and if it is too much the ecu will throw a cel.
He said so speaking about the mperformance exhaust
AA midpipe by design removes the OPF filters on European cars, so CEL is 100% guaranteed
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