Ford Mustang Forum - View Single Post - Exhaust and 02 sensors
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post #12 of (permalink) Old 04-30-2006
kscoyote
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Re: Exhaust and 02 sensors

Quote:
Originally Posted by Ford Freak
Hi guys, I'm having a hard time understanding this. If the V6 Mustang has four cats and most of these aftermarket H-pipes w/ cats only have two, how will it work without the "service engine soon" light coming and staying on? I'm thinking of going with MAC from front to back but always wondered about the two cats that will be missing and what do do about the O2 senors that went in them.
The cats are higher effeiciency then OEM.

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