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Old 08-01-2006, 02:31 PM   #2
98Boxster98
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Join Date: Apr 2005
Location: United States
Posts: 367
If I recall correctly, the 2.5L models don't have a secondary set of cats, just a hum drum set of primary cats. Our secondary cat bypass pipes come standard.

Last edited by 98Boxster98; 08-01-2006 at 02:36 PM.
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