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Hey guys, i have a 2000 V6 mustang and i was going to take it to a shop to have them cut right behind the cats, and run a true dual exhaust with H pipe and flowmaster 40s (iv already decided on the setup so if we can lets leave the arguing over exhaust setup out of this thread)

The thing i was wondering is if i did this would i also have to have them put in bung holes for the rear O2 sensors or would it be ok if i just only had the front O2 sensors and then told the computer not to check for the rear sensors with a tuner or something

Thanks guys
 

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¡ʇsnq ɹo uʍop ǝpısdn
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you need the rear ones unless you turn them off... or MIL them out
 

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Do you have emissions?
 

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I would have the O2 bungs welded in then. It won't take but an extra 20 minutes!
 

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Sorry but quick question about O/R h-pipe. When I do the O/R midpipe and I have MIL eliminators do I need to replace the rear O2 sensors. Or do the MIL's do away with their signal to the computer?
 
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