Tapping aftermarket header?

crpwrx · 12-10-2010, 09:37 PM

Can you do this to install an egt sensor? It seems that i see it alot on stock header but not aftermarket.

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NW2TONE · 12-10-2010, 11:01 PM

you need to have a bung welded in.

TXwrxWagon · 12-16-2010, 02:13 PM

18mm I think is the typical EGT/02 sensor bung size.

www.jegs.com

www.summitracing.com

any local exhaust shop should have them.

Rob

Web Foot STi · 12-16-2010, 03:21 PM

Quote:

Originally Posted by TXwrxWagon

18mm I think is the typical EGT/02 sensor bung size.

www.jegs.com

www.summitracing.com

any local exhaust shop should have them.

Rob

18mm is correct for most O2 sensors. For an 1/8" dia thermocouple a 1/4" NPT compression fitting is common. There are other styles too.

You need to know/tell us what you are planning to use. There simply isn't enough "meat" in a tube header for a thread where a cast iron manifold has plenty.

crpwrx · 12-16-2010, 05:35 PM

Thanks for the info guys. Now i just have to pull my header off.

12-10-2010, 09:37 PM	#1
crpwrx Scooby Specialist Member#: 180710 Join Date: May 2008 Chapter/Region: South East Location: Jacksonville, NC Vehicle: 2002 PSM WRX WFC# 229	Tapping aftermarket header? Can you do this to install an egt sensor? It seems that i see it alot on stock header but not aftermarket. * Registered users of the site do not see these ads.

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12-10-2010, 11:01 PM	#2
NW2TONE Scooby Specialist Member#: 212509 Join Date: May 2009 Chapter/Region: NWIC Location: marysville,WA Vehicle: unde your hood makin your **** go faster	you need to have a bung welded in.

12-16-2010, 02:13 PM	#3
TXwrxWagon Scooby Specialist Member#: 191557 Join Date: Oct 2008 Chapter/Region: TXIC Location: Rockwall-East DFW Vehicle: 2004 WRX Wagon WRB not so minty fresh	18mm I think is the typical EGT/02 sensor bung size. www.jegs.com www.summitracing.com any local exhaust shop should have them. Rob

12-16-2010, 05:35 PM	#5
crpwrx Scooby Specialist Member#: 180710 Join Date: May 2008 Chapter/Region: South East Location: Jacksonville, NC Vehicle: 2002 PSM WRX WFC# 229	Thanks for the info guys. Now i just have to pull my header off.