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Discussion Starter · #1 ·
Any suggestions on a good brand after market manifold catalytic converter? Does anyone have experience with Bosal, Walker or Maganflow converters? Actually I already replaced converter with a Dorman brand already but it didn't last long. Check engine light back on P0420 code. Had code checked out by my dealer and firestone both shops said it's the converter. My Dorman cat is covered under replacement warranty, but I want to up grade to a better one.
 

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Often that code has other causes. I suggest you do a search engine search for understanding p0420 toyota sensors
 

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Discussion Starter · #3 ·
I had diagnostic done by Toyota and Firestone. Both said it's the converter, I was hoping it was a bad 02 sensor, was told sensors were fine.
 

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Discussion Starter · #5 ·
Hello everyone. I replaced my converter with a ATP brand I purchased from Pepboys. I decided to go with this unit because it has a lifetime warranty. I had unit installed by a local shop, cheaper than pepboys. So far no engine codes and gas mileage is better.
 
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