Maintenance and Upkeep Discussion HHR maintenance tips ranging from oil change intervals to brake pads and everything in between.

Cat back Exhaust Replacement Questions

Old Oct 9, 2021 | 01:49 PM
  #11  
SlickRick2's Avatar
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Joined: 08-12-2008
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From: South Jersey
No I didn't.
Old Oct 9, 2021 | 03:38 PM
  #12  
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If you need a new catalytic converter, this is the one for the 2.2 , a full 2” ID mandrel bent pipes so no crimps , and a high flow catalytic converter
https://mufflerexpress.ca/products/c...rter-2005-2007

It sure woke up Oldblue, it had a 2.2 and this down pipe with the Walker cat back , it let that 2.2 breathe!
Old Oct 9, 2021 | 04:18 PM
  #13  
SlickRick2's Avatar
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Joined: 08-12-2008
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From: South Jersey
My 2009 has the pipe with two canisters; I see that covers up to 2007 it says. I searched their site, but apparently they don't make one for 2009. Or will this also fit mine? So far, knock on wood, I don't need a converter.

Are the 2 1/4" different from OE? Is the Walker pipe 2 1/4"?
Old Oct 9, 2021 | 06:10 PM
  #14  
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They "fit". It is the 1 or 2 cats that makes a diff.
Old Oct 9, 2021 | 06:13 PM
  #15  
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Some people modify their down pipe by gutting that second cat, some eliminate it . Depends on the state laws.

This one is for the 2008 thru 2011 dual catalytic converter
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