I need TP for my bunghole! (...or Anyone know what threads are for an O2 sensor plug?

tjbuggy2b · 03-14-2024, 09:13 PM

I just bought the Active Autowerke downpipe for my 540i. Just noticed it has 2 bungholes (Are you threatening me?). Pretty sure I only have one O2 sensor. Though, admittedly, I haven't checked. Anyone have any idea what the thread pattern on it is? Need to buy a plug for my bunghole.

tjbuggy2b · 03-14-2024, 09:14 PM

To be fair. (insert Letterkenny) I haven't done any homework on this. Taking the super lazy route and letting someone tell me what to do.

tjbuggy2b · 03-15-2024, 09:17 AM

Homework done. I was wrong. Looks like there are two O2 sensors, realoem.com's diagram.

buddyboy · 03-19-2024, 10:27 AM

I love the self correction! yes you have 2 o2 sensors, pre and post cat ,most new downpipes come with threaded bung plugs too also

rrbarrios14 · 03-19-2024, 06:58 PM

I havent heard those quotes in a long time! Clicked on this post only becuase of TEEPEE!

Quote:

Originally Posted by tjbuggy2b

I just bought the Active Autowerke downpipe for my 540i. Just noticed it has 2 bungholes (Are you threatening me?). Pretty sure I only have one O2 sensor. Though, admittedly, I haven't checked. Anyone have any idea what the thread pattern on it is? Need to buy a plug for my bunghole.

03-14-2024, 09:13 PM	#1
tjbuggy2b Lieutenant 183 Rep 416 Posts Drives: 2018 540i xDrive M Sport Join Date: Nov 2010 Location: Columbus, OH iTrader: (0)	I need TP for my bunghole! (...or Anyone know what threads are for an O2 sensor plug? I just bought the Active Autowerke downpipe for my 540i. Just noticed it has 2 bungholes (Are you threatening me?). Pretty sure I only have one O2 sensor. Though, admittedly, I haven't checked. Anyone have any idea what the thread pattern on it is? Need to buy a plug for my bunghole.
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03-14-2024, 09:14 PM	#2
tjbuggy2b Lieutenant 183 Rep 416 Posts Drives: 2018 540i xDrive M Sport Join Date: Nov 2010 Location: Columbus, OH iTrader: (0)	To be fair. (insert Letterkenny) I haven't done any homework on this. Taking the super lazy route and letting someone tell me what to do.
	Appreciate 0 Quote

03-15-2024, 09:17 AM	#3
tjbuggy2b Lieutenant 183 Rep 416 Posts Drives: 2018 540i xDrive M Sport Join Date: Nov 2010 Location: Columbus, OH iTrader: (0)	Homework done. I was wrong. Looks like there are two O2 sensors, realoem.com's diagram.
	Appreciate 0 Quote

03-19-2024, 10:27 AM	#4
buddyboy First Lieutenant 265 Rep 331 Posts Drives: 17 540ix Join Date: Oct 2018 Location: Ireland iTrader: (0)	I love the self correction! yes you have 2 o2 sensors, pre and post cat ,most new downpipes come with threaded bung plugs too also __________________ Pure800, Dorch DS2, VRSF sports cat, MST intake, MHD ECA, XHP, Pureboost.de custom tuned
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