Recommendations for high flow cats - Mustang Evolution

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Old 08-19-2013, 09:33 PM   #1
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Recommendations for high flow cats

So I'm wanting to buy some high flow cats and wondering what the best ones are. I was going to get the ones for a supercharged setup being that I will be supercharging soon, but it was said in the reviews that it doesn't last very long and still fails emissions? What would be the best kind to get? Thanks for any help!
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Old 08-19-2013, 09:40 PM   #2
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Why not get an off road one, cheaper, louder
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Old 08-19-2013, 09:43 PM   #3
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I have one but i cant pass emissions and dont have the stock midpipe
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Old 08-19-2013, 09:43 PM   #4
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How much can you really pick up without cat's anyway? Run an offroad pipe and change out for inspections, or maybe a cutout?
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Old 08-19-2013, 09:45 PM   #5
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Sometimes high flow cats fail from what I've read. Maybe you can try to pick up a stock midpipe from Craig's
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Old 08-20-2013, 11:39 AM   #6
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As I said in your other post, they is no such thing as "high-flow" cats. They are just smaller cans with less substrate/honeycomb catalyst which makes them less restrictive; and not last as long because they are improperly sized for the engine.

25k to 30k is about it before they stop scrubbing the exhaust.
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