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2.5'' or 3'' exhaust?

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Old Apr 21, 2011 | 08:49 AM
  #1  
gdriver2010's Avatar
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From: Cookeville TN
2.5'' or 3'' exhaust?

Is 3 inch exhaust really necessary on an NA sedan. It seems excessive to me but i figured i would see what you guys thought. Would 2.5 inch not be sufficient for the VQ?
 
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Old Apr 21, 2011 | 04:22 PM
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2.5 is sufficient from what I've read
 
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Old Apr 21, 2011 | 05:14 PM
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You don't need a 3" exhaust. High HP turbocharged cars run 3" piping.
 
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Old Apr 22, 2011 | 02:44 AM
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I made well over 600whp with a 2.5" exhaust.
 
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Old Apr 22, 2011 | 10:07 AM
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good enough for me ... thanks
 
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