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      05-20-2018, 01:33 PM   #42
Tallest
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Drives: 911
Join Date: Sep 2007
Location: Sweden

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2011 911  [10.00]
Quote:
Originally Posted by onfireX5 View Post
I admire Eisenmann's honesty. This will be a killer sound mod. The dyno graph shows how well the factory M muffler is designed for flow. No power to be gained.
Would say it another way - it is well designed that there is no loss of power. Most of these exhaust mods lose you power.
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