Thread: Borla exhuast on 2.7 Boxster..
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Old 08-03-2006, 09:59 PM   #2
SoCal
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Join Date: Jun 2005
Location: Southern California
Posts: 173
If you buy a Borla muffler, keep your stock muffler, because you're probably going to be putting it back on. Borla's claims of hp gain are phoney.
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