E46Fanatics - View Single Post - DIY: Post-cat O2 (oxygen) sensors replacement (w/pics)
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Old 12-15-2012, 06:23 PM   #16
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Join Date: Mar 2011
Location: CFL
Posts: 48
My Ride: E46
must be the 323's

i could not get at my rear post cat 02 on the 325 until i pulled the skid plate.. then I had to remove a bolt but thats only bc someone bolted the manifolds back up without using OEM hardware and they were too long.

either way, the post cat 02's I have the same number stamped on them and I did not differentiate when I pulled them. I hope to hell they are the same part bc I am just slapping back in there and running with it. Anyone know?

at least I can plug the front one into the front connector per this thread... nice read.
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