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      03-03-2012, 10:41 PM   #33
K B Vettin
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Drives: 2011 M3 Convertable Manual
Join Date: Sep 2011
Location: San Diego CA

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2011 M3 E93  [0.00]
all you need to make the exhaust note of the Akra sound better is the ESS VT2-600 Supercharger. i know it got rid of the weird crackly noise around 4000 RPM for me.
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