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Registered User
Join Date: Aug 2003
Location: N. CA. Sonoma. County
Posts: 1,277
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Does anyone know how much louder the car would be with a test pipe versus a CAT?
The pre-muffler by it looks, looks likes it tones things down a little.
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Tim.
1988 911 Carrera. Silver.
1973 914 Metalic Blue.
2012 Cayenne S
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