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

Long Tubes with Single Cat?

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Old Sep 18, 2006 | 01:03 PM
  #1  
euforia51's Avatar
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From: Charlotte, NC
Long Tubes with Single Cat?

Hi people...

Very long time since I've been here. Still have my '95 Z. Considering Long Tubes but need to run a single cat. I haven't seen any long tube y-pipe that will mount a cat as well. Is it possible? And has it been done?

Thanks!
Old Sep 18, 2006 | 01:06 PM
  #2  
2000GTP's Avatar
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From: Aurora, IL
Re: Long Tubes with Single Cat?

I've heard of it being done, but I don't know how efficient it is really going to be considering the cat is going to be at the tailend of the y-pipe which spaces it a good distance away from the headers themselves.
Old Sep 18, 2006 | 01:10 PM
  #3  
euforia51's Avatar
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From: Charlotte, NC
Re: Long Tubes with Single Cat?

I know it's kind of ridiculous, but it's a necessity thanks to the smog police. No sniffer test here in NC on '95 and older but definitely needs to pass the visual.
Old Sep 18, 2006 | 04:46 PM
  #4  
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From: King of Prussia, PA
Re: Long Tubes with Single Cat?

I did it.. i can give you a pic of what my set up looks like if you want.. i have hooker long tubes, hooker off road y-pipe, and then a hooker catback with a cat welded in the i-pipe... however im told its choking my engine so im removing it.. replacing with a cutout, and putting two mini cats in the y-pipe..
but yes its very possible.. just not very efficient
Old Sep 18, 2006 | 07:18 PM
  #5  
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Re: Long Tubes with Single Cat?

If you don't have to pass the sniffer test, then you will be fine. The only reason why I had a pair of mini-cats welded into my y-pipe was simply in case of a visual inspection.
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