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Catalytic Converter

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Old 07-13-2009, 08:46 AM
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Question Catalytic Converter

hey guy my bonne needs a new catalytic converter and i was wondering what option would be better buying a new or getting a used one, let me know what u think

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Old 07-13-2009, 09:29 AM
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Depends. If your planning on doing bigger mods in the future, as far as performance goes, u may wanna get a hi flow cat, but if your just looking to replace a stock part, hit up the dealer ship or a junk yard and try and get you a OEM replacement. Keep in mind tho which ever route you take a used cat will have sustained a lot of use in its life so you may wanna get a new one either way.
Old 07-13-2009, 11:39 AM
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Originally Posted by 1st Bonne
hey guy my bonne needs a new catalytic converter and i was wondering what option would be better buying a new or getting a used one, let me know what u think
How did you determine that you car needs a new cat?

OEM aftermarket cat'* are not the expensive. I would recommend going with a new rather than a used. With the used you don't know how much time you would have left before you would need to replace it.
Old 07-16-2009, 08:13 PM
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Used ones around here are illegal. I believe it is an EPA thing. Buy a new one. I got one shipped for under $80, a Magnaflow.
Old 07-16-2009, 08:27 PM
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What year is your car? magnaflow cats are fine until you hit 2000+
Old 07-17-2009, 01:59 AM
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if you dont have an aft o2 sensor and dont want to put a cat in put a straight pipe in
Old 07-17-2009, 11:07 AM
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Originally Posted by Purplehazeir
How did you determine that you car needs a new cat?

.
I wonder the same thing. did a tech tell you you needed a new cat? fail smog? Tweaking o2 sensors? loss of performance? loss of exhaust flow? blow a hole through your muffler?

We wanna see if we can save you money.
Old 07-18-2009, 01:02 PM
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yea the guy at auto zone said that my catalytic converter was clogged
Old 07-18-2009, 01:28 PM
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How exactly did he determine the cat was clogged? If the engine starts to loose power at higher RPMs that could be a clogged cat. Remove the front O2 sensor and run the engine that way. If the cat is clogged this will let the exhaust out. It will however be rather loud.
Old 07-18-2009, 02:20 PM
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The guy at AZ probably read an 02 sensor code and gave him a one size fits all description.


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