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

size of Exhaust after cat

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Old 09-22-2004, 11:46 AM
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size of Exhaust after cat

I am currently running a stock cat back and I want to buy a cutout. I was wondering what the outside diameter is after the cat? I am thinking it is 3 inch I just don't have anything to measure it with right now. I have a 96 TA. Thanks in advance
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Old 09-22-2004, 01:49 PM
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Re: size of Exhaust after cat

2.75" stock, 3" most aftermarket catbacks.


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Old 09-22-2004, 01:54 PM
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Re: size of Exhaust after cat

I do beleive its 14 gauge pipe as well. But it could be only 16 gauge.
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