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which high flow cat?

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Old 11-21-2007, 06:18 PM
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which high flow cat?

I cut my stock cat off because it cloged and now want to know which one to get. I found one that is called a flowmonster on ebay. Does anyone know about these? How about car-sound?
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Old 11-21-2007, 07:08 PM
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Carsound are good. I bought a Catco myself. Can't complain about it at all.

Last edited by Gord's Green Z28; 11-21-2007 at 07:22 PM.
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Old 11-21-2007, 09:30 PM
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http://www.pysales.com/iwwida.pvx?;i...0%201?comp=ppe

Show me a cat that flows more than 450cfm and sells for less than $75!! I have yet to find one other than the Pypes. These are so compact that they will even fit onto both sides of an ORY.
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Old 11-22-2007, 09:16 PM
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I agree on the pypes. I went and did alot of search for a good high flowing cat and could not find anything better either for the price of the pypes. I got the pypes for 71.90 shipped. Thanks for the advice.
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Old 11-24-2007, 10:00 PM
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The metallic substrait cats flow the best, but they're not cheap. Well, there are some on ebay, but I know nothing of them.

The problem with the cheaper cats is that they coat with less of the catalyst to keep costs down. So in essence, they don't work as well.

Last edited by Greed4Speed; 11-24-2007 at 10:02 PM.
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Old 12-02-2007, 10:39 PM
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Might do a search from Hot Rod Mag.They tested about 8 cats,and Catco flowed the best.(This was a few years back though).My02.
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Old 12-03-2007, 07:27 AM
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A few years back they didn't have the mettalic substait.
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Old 12-03-2007, 09:49 AM
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I did a search for matallic substraights,wow,big difference in the flow charts.What vendors here sell these?Many thanks Greed4Speed.
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Old 12-03-2007, 05:38 PM
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Anyone that carries Magnaflow should be able to get them.
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Old 12-03-2007, 06:43 PM
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do you need to pass emissions? an ory would be much cheaper..
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