dc header without o2 sensor

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Oct 7, 2005 | 07:27 PM

allmotor1

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dc header without o2 sensor

i bought 4-2-1 dc headers but it didnt have a hole for o2 sensor so i dont want to weld a new hole to it but wat will happen if i weld the sensor on the exhaust pipe next to the other cat sensor, will it make run rich?

Oct 7, 2005 | 09:19 PM

qtiger

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Your first O2 sensor must be in front of the cat, not after.

Oct 8, 2005 | 07:09 AM

allmotor1

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its a stright pipe with no cat but the 0 2 sensors were custom welded on the pipe

Oct 8, 2005 | 08:45 AM

qtiger

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Just try to put the new O2 bung as close to the header as possible.

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