2005 Nissan Altima catalytic converter needs to be replaced

2005 NISSAN ALTIMA
90,000 MILES • 4 CYL • 2WD • AUTOMATIC
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What are the ramifications of not replacing the catalytic converter?

The dealer quoted a price of $1200 -> $1500.
Why does it cost so much to replace the catalytic converter?
Sep 3, 2009 at 10:32 AM
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RASMATAZ
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Defective catalytic converter will suffocate the engine and reduce the volumemetric efficiency in other words the engine is not breathing properly. You can use a test pipe as you wish but come state emission inspection you have to put one On.

Why $$$$ for Cat-maybe bcuz what its made of Platinum and Palladium
Sep 3, 2009 at 3:32 PM