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Old Mar 4, 2011 | 10:56 AM
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Default Hi Flow Cats
Is it true that the material in any high flow cat will break down eventually and make the car become louder and deeper over time??
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Old Mar 4, 2011 | 10:58 AM
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Ceramic will break apart rendering the cat useless, and will restrict flow.
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Old Mar 4, 2011 | 12:22 PM
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Originally Posted by GSus
Ceramic will break apart rendering the cat useless, and will restrict flow.
Really even in the TSP Hi Flow Cats i have?
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Old Mar 4, 2011 | 12:29 PM
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Ceramic has a tendency over time to degrade. I don't have any experience with tsp's cats, so I don't want to comment on those. If you were to get metal spun cats, you shouldn't have any issues.

I hope some of this helps.
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Old Mar 4, 2011 | 12:44 PM
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anyone know how ARH cats are because im prob picking up a lts and catted y soon.
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Old Mar 4, 2011 | 03:22 PM
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Magnaflow Hi-Flow Heavy Metal cats part # 99659HM absolutely AMAZING cats. They flow 80% over stock AND they are OBDII compliant.
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Old Mar 4, 2011 | 08:39 PM
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Originally Posted by PheonixLS1
Magnaflow Hi-Flow Heavy Metal cats part # 99659HM absolutely AMAZING cats. They flow 80% over stock AND they are OBDII compliant.
ALL cats will eventually go bad at some point but there not short term wear items so I wouldnt worry about it
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Old Mar 4, 2011 | 09:32 PM
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Originally Posted by Starz T/A 17
ALL cats will eventually go bad at some point but there not short term wear items so I wouldnt worry about it
True, however Heavy Metal will outlast ceramic by a LONG SHOT! And at about the same price for either or, seems to me the choice is obvious......
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Old Mar 4, 2011 | 10:27 PM
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Originally Posted by GSus
Ceramic has a tendency over time to degrade. I don't have any experience with tsp's cats, so I don't want to comment on those. If you were to get metal spun cats, you shouldn't have any issues.

I hope some of this helps.
Originally Posted by Starz T/A 17
ALL cats will eventually go bad at some point but there not short term wear items so I wouldnt worry about it
Originally Posted by PheonixLS1
True, however Heavy Metal will outlast ceramic by a LONG SHOT! And at about the same price for either or, seems to me the choice is obvious......
ok cool, well was just wondering, i think the TSP ones are called Flowmonsters or something like that?
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Old Mar 6, 2011 | 07:57 PM
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anyone?
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Old Mar 6, 2011 | 08:17 PM
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What about thunderbolt cats?
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Old Mar 6, 2011 | 09:25 PM
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I have had the Random Tech high flow cats for 80k-90k and dont seem to have any problems. I have ordered new headers and cats so I will see just how bad they look in the near future.
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Old Mar 6, 2011 | 10:20 PM
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I have thunderbolt metallics on mine. My friend had ceramics he bought off ebay and 1 blew out completely on him within a week. Also misfires wont tear up metal like the ceramic
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Old Mar 6, 2011 | 11:48 PM
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Originally Posted by jlrz28
I have had the Random Tech high flow cats for 80k-90k and dont seem to have any problems. I have ordered new headers and cats so I will see just how bad they look in the near future.
Originally Posted by hitmanws6
I have thunderbolt metallics on mine. My friend had ceramics he bought off ebay and 1 blew out completely on him within a week. Also misfires wont tear up metal like the ceramic
i wish i would have gutted mine out then
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Old Mar 7, 2011 | 12:49 PM
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anyone running the tsp cats?
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Old Mar 7, 2011 | 09:47 PM
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Originally Posted by z28camaross2
anyone know how ARH cats are because im prob picking up a lts and catted y soon.
I have them and they appear to be MF cats to me but maybe Nick or Josh will chime in...
Attached Thumbnails Hi Flow Cats-dscn0471.jpg  
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Old Mar 8, 2011 | 12:05 AM
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Originally Posted by SOMbitch
I have them and they appear to be MF cats to me but maybe Nick or Josh will chime in...
thats an american racing headers cat?
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Old Mar 8, 2011 | 10:46 AM
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High flow cats are typically metal substrate construction (see pic above) which keeps its shape/form and doesn't crack/fall apart, so there is no possible blockage that can result, regardless of the catalyst burning off.
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Old Mar 8, 2011 | 12:53 PM
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Originally Posted by joecar
High flow cats are typically metal substrate construction (see pic above) which keeps its shape/form and doesn't crack/fall apart, so there is no possible blockage that can result, regardless of the catalyst burning off.
wow thats interesting, does make sense though, everyone has to different opinions though
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Old Mar 8, 2011 | 01:09 PM
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magnaflow cats ftw
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