Thread: How loud is the 1M Exhaust?
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      07-17-2011, 04:31 PM   #5
KIYO
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Drives: 1er M Coupé
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There was a chart about how loud the 1M is in Auto Motor und Sport.
When idle (Standgerausch) 81 dB, pass by (Fahrgerausch) is 73 dB in the article.
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