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      01-01-2009, 07:16 PM   #13
GregW / Oregon
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Drives: 2015 M4 Coupe, 2012 ML350
Join Date: Nov 2005
Location: Lake Oswego, OR

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Stock exhaust loudness

Quote:
Originally Posted by Hammer View Post
There are still NO facts about the voiceoutput of the stock exhaut (db-figures)

Anyone knows em? I googled allready without a satisfying result.
From Nate at IND in the Eisenmann thread, these are the figures on the stock exhaust:

moving vehicle = apr. 75 db
stationary vehicle = 92 db at 6.225 1/min
value of backpressure = 0,47 bar at 2. gear and 0,51 bar at 3. gear
weight of the muffler = apr. 21 kg
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Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350