gutting the cats ??? - TCCoA Forums
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post #1 of 8 (permalink) Old 07-23-2006, 07:19 PM Thread Starter
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gutting the cats ???

i have my 3rd cat gutted. i was just wondering, if i gut the other 2 cats, will it help with performance ? also, would it cause the cel light to come on ? has anyone else tried this, and did it help the power any or cause any problems ?
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post #2 of 8 (permalink) Old 07-23-2006, 09:24 PM
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I recently had my cats removed on my headswapped '97 because one of them melted and blocked the pipe. You need MIL eliminators or a tune to remove the check engine light you will get from having no catalyst. Yes, they also helped performance in my case.

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post #3 of 8 (permalink) Old 07-23-2006, 10:21 PM
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dont gut the other cats. it will sound like fire crackers going off in a coffe can. the cat housings aren't as thick as the rest of the exhaust. So the exhaust sound echos and pings.

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post #4 of 8 (permalink) Old 07-23-2006, 11:28 PM
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I have gutted cats with only a foot of pipe behind them on each side, straight pipes in other words. Sound good, but it does have that "ticking" sound to it, maybe some glasspacks will remove that ticking??

Performance, I'd say maybe it helps in the top end just a little bit, but I can't tell for sure.
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post #5 of 8 (permalink) Old 07-24-2006, 07:28 AM
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You'll lose some low end. Plus it will sound like a truck IMO.
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post #6 of 8 (permalink) Old 07-24-2006, 08:06 AM
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if you gut the cats you might have issues passing emission testing
cel light will come on as others told you

id recomment getting highflow cats instad
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post #7 of 8 (permalink) Old 07-24-2006, 08:46 AM Thread Starter
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thanks for all the input here guys. we dont have emmision testing here on 1995 or older cars anymore, but i dont think i want that pinging and popping noise and i dont want to hurt the bottom end. anyone know how much high flow front cats cost ? is any brand better than another ?
also, are the high flow cats going to help ? or would i be best just to leave it like it is ?
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post #8 of 8 (permalink) Old 07-24-2006, 09:14 AM
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Personally unless they are bad or you're building up your exhaust for future upgrades, I would leave them on and forget about them.

Last edited by Adam B.; 07-24-2006 at 09:20 AM.
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