Why does my 2003 Pontiac Sunfire have a cat-back that y's into two mufflers? Can it be replaced with a single muffler and cat-back without effecting exaust flow from motor?

Asked by scho Dec 31, 2013 at 01:52 AM about the 2003 Pontiac Sunfire

Question type: Maintenance & Repair

My manifold has only one pipe coming out so i do not see the logic in two mufflers unless it is purely for looks and added expense to replace

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Norm answered 10 years ago

There isn't room under the car for a single muffler that will create the sound/performance the car needs to run as well as it can. You can get stock or performance pipe replacements online. A single exhaust and single muffler will work, but you might not be happy with the sound or performance.

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Why does my 2003 Pontiac Sunfire have a cat-back that y's into two mufflers? Can it be replaced with a single muffler and cat-back without effecting exaust flow from motor? 1 Answer

My manifold has only one pipe coming out so i do not see the logic in two mufflers unless it is purely for looks and added expense to replace

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Why does my 2003 Pontiac Sunfire have a cat-back that y's into two mufflers? Can it be replaced with a single muffler and cat-back without effecting exaust flow from motor?

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Why does my 2003 Pontiac Sunfire have a cat-back that y's into two mufflers? Can it be replaced with a single muffler and cat-back without effecting exaust flow from motor?

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