Thread: DIY Exhaust Mod – Gain of 10+ HP!!!
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Old 04-28-2010, 10:38 PM   #100
jgaude
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Join Date: Apr 2010
Location: San Jose, CA
Posts: 12
I'm bummed... I just did the mod on my '01 S, with 1/2" holes.. no sound difference at all! :-(

..Joe
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