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Originally Posted by CJ_Boxster
Its basically an anti-fouler for your O2 sensor. Say you decide to remove your cats on your exhaust, well the excessive heat will cause them to fail due to heat and give false readings.. All this does is set your O2 sensor (behind the cat) about half an inch higher out of the exhaust which is just about how far you would need to be to protect it from excessive heat and give a more accurate reading that the dme is expecting to get... I've done this to my friends rsx-type-s when he got racing headers.
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Hi,
That's bogus. If you remove the Cats, there is no excessive heat, it all goes out the tailpipes. You build-up about 5-10 times more heat with the Cats in place than without them.
I still don't buy it. I see now that this is just a Bung extension, that you still use the OČ sensor. There is no difference in the heat using this, nor does heat affect the way an OČ sensor works, it measures a change in voltage dependent upon the OČ content in the exhaust stream...
Happy Motoring!... Jim'99