stock exhaust diameter?
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1st Gear
Joined: Jul 2011
Posts: 141
From: Menomonie WI (western, WI)
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"?
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