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      12-07-2019, 04:15 PM   #5
CSL335i
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Hungary
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Drives: M2 and...
Join Date: Mar 2010
Location: Budapest/Hungary/Europe

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Quote:
Originally Posted by GodfatherNiko View Post
It could trigger a CEL, as reported by people like Joe Achilles and others. As backpressure after the OPF is significantly reduced, it could lead to the sensors triggering a CEL, despite the OPF still being in place. Especially since you have the Race rear section, which in itself already has much lower backpressure than the stock rear silencer or even the Remus Sport rear section.
I read somewhere that there is an OPF (pressure) recalibration in ISTA.
If i assume this function well, it may help to recalibrate the pressure characteristics after the end-muffler has changed (or when OPF is getting older and older). I will change my exhaust muffler with a custom built one and will give a try to this recalibration.
Appreciate 0