hollow cats? or not
06-23-2004, 02:33 PM
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hollow cats? or not Ok Guys, I Have A 2000 Pontiac Trans Am And I Have A Flowmaster Muffler And A 3" Cutout And I Want To Know How It Would Sound If I Hollow Out The Catilytic Converters? EVERYTHING ELSE IS COMPLETELY STOCK?
06-23-2004, 11:40 PM
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I wouldn't "gut" them. Either remove them completely or if your worried about the visual inspection gut them and run a piece of pipe through them. In my opinion a big open chamber(empty converters) wouldn't be that good for sound or performance. Just my .02.
06-24-2004, 11:16 PM
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Originally Posted by BriancWS6
I wouldn't "gut" them. Either remove them completely or if your worried about the visual inspection gut them and run a piece of pipe through them. In my opinion a big open chamber(empty converters) wouldn't be that good for sound or performance. Just my .02.
06-24-2004, 11:49 PM
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Originally Posted by 99'Formula
How would empty converters be not that good for performance. Wouldn't that be allmost the same as removing them?
It's not that empty converters would be bad for performance. I'm sure your exhaust tone would probably change for the worst. It would almost be like screaming into a cave. A sort of echo effect. That's why he mentioned gutting them and then running a straight pipe through them.
06-24-2004, 11:53 PM
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i have slp long tubes, slp y pipe, and cutout....i had my cats gutted and the sound is very nice imo.....very deep but not raspy....
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06-25-2004, 05:02 PM
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Originally Posted by Z28Venom
It's not that empty converters would be bad for performance. I'm sure your exhaust tone would probably change for the worst. It would almost be like screaming into a cave. A sort of echo effect. That's why he mentioned gutting them and then running a straight pipe through them.
06-25-2004, 09:00 PM
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I gutted my cats (pre headers) when I had a LM, sounded like complete ***, installed a Hooker catback and sounded great, the same still holds true with LT's and ORY pipe to this date.
