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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

how to beat emissions visual?

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Old 01-13-2009, 03:34 PM
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Default how to beat emissions visual?
is it possible to somehow bolt on cats OVER a 3" y-pipe to make it look like its catted?
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Old 01-13-2009, 04:15 PM
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gutted cats, or dynomax bullets
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Old 01-13-2009, 04:20 PM
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well i have the lpp lts and ory...is it possible to somehow fab something up to put over the existing y pipe just to pass the visual?
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Old 01-13-2009, 04:22 PM
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Originally Posted by shutzero
well i have the lpp lts and ory...is it possible to somehow fab something up to put over the existing y pipe just to pass the visual?
Yeah you can. In fact a guy did it on here if I remember correctly. You should scan the LPP thread that almost 80 pages deep I believe I saw his post and pictures in there.
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Old 01-13-2009, 04:25 PM
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Hollo found some awesome fake cats!!! They look like polished cats but its just a sraight 3" pipe with a fake casing over it! They are pretty cheap too.
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Old 01-13-2009, 04:27 PM
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Here ya go! Scroll down about 3/4 page
https://ls1tech.com/forums/lt1-lt4-m...emissions.html
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Old 01-13-2009, 04:32 PM
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Originally Posted by AChotrod
Here ya go! Scroll down about 3/4 page
https://ls1tech.com/forums/lt1-lt4-m...emissions.html
Those are f'ing sweet!
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Old 01-13-2009, 04:34 PM
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Originally Posted by AChotrod
Hollo found some awesome fake cats!!! They look like polished cats but its just a sraight 3" pipe with a fake casing over it! They are pretty cheap too.
where can i get them...or should i just somehow get my stock cats to fit over my lpp ypipe
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Old 01-13-2009, 04:35 PM
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PM Hollo
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Old 01-13-2009, 04:36 PM
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done, thanks guys!
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Old 01-13-2009, 05:36 PM
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Those are awesome! I would use those if I had to pass a visual..
Last edited by moderate Z28; 01-13-2009 at 05:47 PM.
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Old 01-13-2009, 06:08 PM
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Originally Posted by AChotrod
Here ya go! Scroll down about 3/4 page
https://ls1tech.com/forums/lt1-lt4-m...emissions.html
Yup that's the one I was talking about. Good hunting AC
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Old 01-13-2009, 07:29 PM
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But how do you pass emissions with hollow cats?
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Old 01-13-2009, 07:39 PM
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Originally Posted by 96blackta
But how do you pass emissions with hollow cats?
They want to pass visual, not emissions.............CA sucks *****!
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Old 01-13-2009, 11:06 PM
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my car is OBI so all i have to do is put the stock cat back on and ill pass visual..and after just go pay some cash and pass smog with flying colors..
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Old 01-14-2009, 07:54 AM
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I just have to get my o2s, egr, and smog **** tuned out and as long as I get those hollow cats in I should pass no problem
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Old 01-14-2009, 09:03 AM
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Originally Posted by shutzero
I just have to get my o2s, egr, and smog **** tuned out and as long as I get those hollow cats in I should pass no problem
I officially hate you now. JK.
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Old 01-14-2009, 01:35 PM
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Yep, those AllFlow cats worked like a charm



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