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Old 08-19-2002, 07:51 AM
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Vronsky Vronsky is offline
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Join Date: Jul 2002
Location: Amsterdam, Old Europe
Posts: 839
'Empty' cat: louder noise?

At speeds over 80 mph, I notice that the noise of the engine/exhaust gets much louder. Since the cat is nearly 12 years old, I suspect that the cat is now an empty shell only (all catalyst material gone). Could it this 'empty' cat cause this loud noise?

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