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      08-09-2014, 08:35 PM   #5
FormulaMMM
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Drives: E90 M3
Join Date: Oct 2011
Location: Midwest

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+1 on different tone, unsure on loudness. I do tend to think it's a bit louder coming back through the pits after a track session than on the way out. (from Akrapovic perspective.)
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