Thread: Post cat O2 sensor's.
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      04-02-2017, 11:13 AM   #4
mweisdorfer
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Drives: 2007 Black/Black 335i e90
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Quote:
Originally Posted by fedorE90 View Post
Quote:
Originally Posted by mweisdorfer View Post
Are your post cat sensors blowing codes ?
Yes, after DPs install.
Do you have a tune like MHD?
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