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      05-04-2020, 08:15 AM   #30
patsgarageonline
patsgarageonline.com
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Drives: BMW i8
Join Date: Feb 2019
Location: Eldersburg, MD

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Quote:
Originally Posted by the.i8 View Post
Would like to hear the DB difference, if anyone has the time to measure it. Please let me know
BMW claims, in their service manual, that the exhaust flap reduces exhaust noise by 8dB, so I'd expect about an 8dB increase in noise over stock.
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