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2004 Boxster S dyno w/Fabspeed Cat Bypass Pipes
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10-14-2008, 10:49 AM
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jmatta
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Join Date: Nov 2007
Location: Chicago suburbs
Posts: 1,675
I also have the Fabspeed secondary cat bypass pipes on my '02 S...whether or not there is a power increase, the sound the bypass pipes create is worth the price of admission.
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