08-20-2007, 06:09 AM | #1 |
12psi boost
Join Date: Aug 2006
Location: North Carolina
Posts: 361
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3" exhaust/2.5" wit not cats Hp Gains?
When you open up the exhaust 3" or you take your cats off how much horsepower do you gain, on stock boost pressure... 5,10,15 ect.?
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