someone with an ex

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09-21-2003, 05:33 PM

mhgleitz

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someone with an ex

If you have an ex and you took off your stock header and replaced it with an aftermarket. Do you have 2 o2 sensors along with a pre-cat on your stock header? Thanks.

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09-21-2003, 05:35 PM

97civicdx

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Re: someone with an ex (mhgleitz)

There will be 1 o2 sensor on the header itself and a 2nd one after the cat.

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09-21-2003, 06:01 PM

mhgleitz

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after the cat built in to the exhaust manifold or the cat connected to the b-pipe?

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09-21-2003, 06:29 PM

DV98CVC

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Re: (mhgleitz)

you'll have 1 in the manifold, and one after the cat...some aftermarket headers come with two bungs for and extra o2 sensor...i just welded my extra one shut