March 27th 2010, 13:27
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Registered User
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Join Date: Jan 2003
Location: Boulder Creek, CA
Posts: 758
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What are you running for a muffler? I was able to get my race car in spec with just a muffler change. I'm using a borla 2.5" straight through 5"x10" round can packed with fiberglass and really quiets down the motor.
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