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Old 11-20-2007, 07:29 PM   #1
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Default A few cat questions

I searched and got mixed results. So i am looking for the part numbers for both cats. I want to keep the same size if i can.


My brothers 2000

My 1995 (believe it is 94006)


I figure since high flows are cheap and the price of used cats is so high, might as well get them done.
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Old 11-20-2007, 09:42 PM   #2
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well stock is only 2 1/4 why not go to 2 1/2 inches in and out and check the number i got on mine its a high flow stainless 54306
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Old 11-24-2007, 01:31 PM   #3
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2 1/4? I know on my 95 stock is 2 1/2. I am pretty sure chads 00 is 2 1/2 also, but i am not 100% sure


So does anyone have part numbers?
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Old 11-24-2007, 01:34 PM   #4
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Sounds like you should measure both cars before and after the cat, then confirm here before we give you numbers.

Note that the diameter may change as you go through the exhuast, so make sure you measure both in the location you need to.
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Old 11-24-2007, 01:39 PM   #5
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I havent checked the 00 yet.


But i know on the 95 it is 2.5 inlet. The outlet can go either way from the way i am looking at it. The actually cat is 2.5 outlet but there is a reducer welded onto the cat (looks stock) and it goes to the 2 1/4 exhaust piping. (unlike the newer sytles that have the flange my cat welds to the downpipe)
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Old 11-24-2007, 02:51 PM   #6
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youre 95 has a differend downpipe that was 2 1/2 so maybe youre cat also differend my downpipe was 2 1/4 and the cat also but the high flow cat is half the size as the stock one
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