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Old 06-06-2013, 09:53 AM   #245 (permalink)
Mt Tam I am
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Quote:
Originally Posted by ChrisSlicks View Post
I have the ART pipes since they are quieter than the alternatives, came in at 88dB at my last reading. I think straight test pipes would be a little higher, maybe right around 90dB.
Cool beans. I would have thought a worse reading. How much actual HP do you gain removing the catalytic converters?
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