Thread: Test pipes diy?
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      07-16-2013, 04:06 PM   #5
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Drives: E46 M3 . E90 M3
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Quote:
Originally Posted by happos2 View Post
Just make sure you unplug the O2 sensors prior to removing pipe or trying to un-screwing O2 sensors.

Very simple job, took me and a body about 45 min - 1 hour to complete. Once you get under the car, you will understand.
Agreed, I usually try to unclip them first and before trying to unscrew them.
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