less than 200 miles on these magnaflow/carsound spun cats. both are collapsed and one side is completely loose inteh case. needless to say....im not too happy with these.

anyone have a suggestion for high flow cats? i am in california, so i need to run cats.

thanks.


-patrick

 

what clued you in? I have the carsound cats too but not sure if they metallic or ceramic. I would think I'd know it with resistance or sound?

 

just a lucky find while rebuilding the engine. i like to call it...more money to spend. hahahaha

 

i've had mine in place for over 10K miles .... i hate seeing this kind of report, like i don't have enough to stress about

 

im just getting too good at working on these engines.

broken flexplate, then broken lifter (and toasted cam) and now the cats....all in about a month

excuse to go dual 3 now...did not really like the sound of the 4" anyway.


interestingly enough, it turns out that the Z06 vettes burn out cats all the time.

 

Sadly, this is not the first report of trouble with these cats.

 

they made it almost 200 miles....

 

Something I posted up on the subject awhile back. Wish I knew what brand they are.

https://www.performancetrucks.net/fo...light=dynatech

 

you need the ones that have the ceramic catalyst. If you go 3" you need the 54959. My converters that I got from stainlessworks lasted about a day and they had the metal catalyst that looked like yours...............uh before. One looked like a crushed ber can and the other I never found but my muffler had shards of aluminum foil that ended up clogging it.

 

those are or should i say were ceramic cats

p/n 59959...same as 54959, just for larger displacement.