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      05-08-2012, 02:07 PM   #36
kthxbye
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Drives: '11 M3 Coupe
Join Date: Dec 2011
Location: Central & North NJ

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Random question, but does the by-pass valve produce sounds similar to a blow-off valve?

If so is this sound just as audible as say the AA kit, or is it a bit more muffled?