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exhaust question

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Old Mar 23, 2016 | 10:05 AM
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renchr56's Avatar
renchr56
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Mountain Pass
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From: Baltimore,Md.
exhaust question

I have a F-150 w/4.2. My drivers side downpipe has the converter as 1 piece. No problem there. My question is since I have to replace this pipe does it matter if the O2 sensor is in the converter or after the converter? OEM has it in the converter and I can get after market that has it after the converter by the bend
 
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Old Mar 23, 2016 | 03:53 PM
  #2  
Bluegrass 7's Avatar
Bluegrass 7
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That sensor is a cat monitor.
It likely is ok in that new position or it would not be made that way if a reputable company is marketing it.
It monitors the health of the cat in cleaning the exhaust back to more Oxygen content.
Good luck.
 
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