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Catalytic converter

Tiny
JOSHM432
  • MEMBER
  • 2005 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 97,000 MILES
How do I replace the catalytic converter on my car? Are there bolt on replacements, so no welding? Also does anyone have a diagram or pictures of how to replace one on my yr make and model vehicle?

Any help would be greatly appreciated!
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Tuesday, May 3rd, 2011 AT 4:01 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
You can get just replacement converters but those do require you to cut out the old one and weld in the replacement. On your vehicle you will need to replace the converter and then access where the pipe bolts into the rest of the exhaust.

Here is a guide that will help with this:

https://www.2carpros.com/articles/catalytic-converter-replacement

However, I am also attaching the info from the manual that will show the details of your vehicle so that you can get this completed.

Please let us know what questions you have. Thanks
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Monday, March 7th, 2022 AT 4:15 PM

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