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stock exhaust diameter?

  #1  
Old 10-18-2011, 12:31 PM
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Join Date: Jul 2011
Location: Menomonie WI (western, WI)
Posts: 141
Default stock exhaust diameter?

hey guys im thinking of doing custom exhaust on my b5 a4, so my question is what is the stock exhaust diameter size? and what is usually the best size for a 1.8T would 2.5" do it? or should i go up to 2.75"?
 
  #2  
Old 01-23-2012, 02:26 PM
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Location: Upstate NY
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Yea, I'm curious myself. How about 3" all the way to the back?
 
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