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Old Jun 25, 2005 | 09:57 PM
  #3  
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Kai
Rotorphile.
 
Joined: Mar 2002
Posts: 10,120
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From: Richmond, VA
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Running without a muffler will have no impact on fuel economy.
Originally Posted by 4Banger69
I would only guess improve it because air is escaping faster
No. If you want to get technical, it's the exact opposite.
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