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

No More Cats

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Old Apr 22, 2003 | 11:18 PM
  #1  
RedZ-28's Avatar
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From: Fresno CA
No More Cats

How much HP do you think this will give me. Do you think its worth it. Also I onley have one cat on it. Its a 95z

PS Dosent that seem werid that i onley have 1 cat on my car
Old Apr 22, 2003 | 11:21 PM
  #2  
94 CAMRO Z28's Avatar
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I only had one cat on my 94 and I cut it off. I do think I gained about .1 and maybe 1mph in the 1/4mile. The exhaust sound is now much raspier and louder. I do have headers, ypipe, and hotcam also so it helps to hear the cam more now. The downside is that the car stinks pretty bad now. I dont mind it at all but most other people that ride in the car comment on how it smells.

Aaron
Old Apr 22, 2003 | 11:24 PM
  #3  
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It's not weird at all. I just removed mine today, i ended up putting my own pipe on but I'm going to have a piece welded tomororw because i'm noticing a little bit of a thumping sound when i hit bumps. SOUNDS SWEET. I don't notice any bad smell????

Last edited by MikeStank; Apr 22, 2003 at 11:27 PM.
Old Apr 22, 2003 | 11:28 PM
  #4  
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Also as far as the smell goes, Im sure having a cam probably makes it worse than if you still have the stock cam.

Aaron
Old Apr 22, 2003 | 11:36 PM
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Originally posted by 94 CAMRO Z28
Also as far as the smell goes, Im sure having a cam probably makes it worse than if you still have the stock cam.

Aaron
when you cut yr cats, dont you have problems passing emissions?
Old Apr 22, 2003 | 11:37 PM
  #6  
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Are you for reals i was thinking i would have a bigger gain in hp.


PS So its pretty much for sound thein hu
Old Apr 23, 2003 | 12:06 AM
  #7  
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I'm thinking about putting an electric cutout on my borla. The thing is too loud now
Old Apr 23, 2003 | 12:13 AM
  #8  
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Originally posted by chasmanz28
when you cut yr cats, dont you have problems passing emissions?
Old Apr 23, 2003 | 12:18 AM
  #9  
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I'm in CA too, I just moved here. I just got my car smog'd and it passed with flying colors. I was talking to the mechanic about it and he said that it would DEFFINATELY not pass emissions if I gutted the cats. But, I have dual cats. Another thing that he said is that being a CA car if I gut my cats then it will throw a code and will probably only just long enough to get to a station to get it fixed. I don't know how the O2 sensors are set up on a 95Z but on the 96 there are four sensors, two heated and two down stream (after the cat). If you don't have one after the cat then you should be good...except for the emissions part. Again, this is just what the mechanic told me.
Old Apr 23, 2003 | 12:28 AM
  #10  
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Originally posted by delbuort
I'm in CA too, I just moved here. I just got my car smog'd and it passed with flying colors. I was talking to the mechanic about it and he said that it would DEFFINATELY not pass emissions if I gutted the cats. But, I have dual cats. Another thing that he said is that being a CA car if I gut my cats then it will throw a code and will probably only just long enough to get to a station to get it fixed. I don't know how the O2 sensors are set up on a 95Z but on the 96 there are four sensors, two heated and two down stream (after the cat). If you don't have one after the cat then you should be good...except for the emissions part. Again, this is just what the mechanic told me.
yeah because in philly the tests are hard to pass, thas why i was wondering
Old Apr 23, 2003 | 12:28 AM
  #11  
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The smog isent a porb for me nor the o2s and i belive you can get somthing to make it not trow a code on yours.

PS I bet you could gut yours and it would pass
Old Apr 23, 2003 | 12:34 AM
  #12  
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Originally posted by chasmanz28
when you cut yr cats, dont you have problems passing emissions?
Emissions?? Whats that??! This part of Wisconsin doesn't have any testing as of now. If it comes the day I'll just weld the cat back in place.

Aaron
Old Apr 23, 2003 | 12:34 AM
  #13  
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Originally posted by RedZ-28
The smog isent a porb for me nor the o2s and i belive you can get somthing to make it not trow a code on yours.

PS I bet you could gut yours and it would pass
i have slp Lm's i could imagine how much louder without the cats

Last edited by chasmanz28; Apr 23, 2003 at 12:36 AM.
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