LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Not the typical question for headers....

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Old Dec 27, 2004 | 04:46 PM
  #1  
red blur's Avatar
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From: Denton/College Station, TX USA
Not the typical question for headers....

I've got a 97 Z with dual cats, but in my mind, I can see this setup on my car:

MAC mid-length headers for 94-95 cars with single cat leading to Hooker catback exhaust. I would use O2 simms for the side where a cat would be missing.

Is this possible, or do I NEED to have both cats. I will have to pass Dallas emissions, so I can't go ORY (unless you know of a hookup--PM me! ) Trying to go cheap as possible, that's why I'm cutting out the other cat.

Thanks!

Jeremy
Old Dec 27, 2004 | 04:50 PM
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Re: Not the typical question for headers....

With O2 sims you dont need any cats because their fucntion is tell the PCM that the cats are working fine.

Last edited by neil350; Dec 27, 2004 at 04:53 PM.
Old Dec 27, 2004 | 04:50 PM
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Re: Not the typical question for headers....

You might not pass with just one cat. JMHO
Old Dec 27, 2004 | 04:53 PM
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Re: Not the typical question for headers....

Originally Posted by BUBBA
You might not pass with just one cat. JMHO
Really?? I figured that since 94-95 cars would pass with one, wo would the 97 and an O2 simm. is it in the same location as a sotck 94-95? I thought it would be because of location under the car. hmmm....
Old Dec 27, 2004 | 04:54 PM
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Re: Not the typical question for headers....

If they just scan the PCM he can with O2 sims, it'll pass with 94-95 style smog hook ups and a cat.
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