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Old 12-10-2010, 09:37 PM   #1
crpwrx
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WFC# 229

Default 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.
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Old 12-10-2010, 11:01 PM   #2
NW2TONE
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you need to have a bung welded in.
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Old 12-16-2010, 02:13 PM   #3
TXwrxWagon
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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
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Old 12-16-2010, 03:21 PM   #4
Web Foot STi
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Quote:
Originally Posted by TXwrxWagon View Post
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.
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Old 12-16-2010, 05:35 PM   #5
crpwrx
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Thanks for the info guys. Now i just have to pull my header off.
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