Quote:
Originally posted by Subafreak
I ment 2 1/2. I think stock is between 2 1/4 and 2 1/2. Of course I have duel 2 1/4 from the manifold back, that would be like running one 4 1/2 pipe! I think I need a S/C to make it worth it.
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Just going through some old posts here and noticed a flaw in your math. A dual 2 1/4 exhaust is not equivalent to a single 4 1/2 exhaust. A single 4 1/2 has twice the cross sectional area of a dual 2 1/4 exhaust.
A single pipe equivalent to a dual 2 1/4 exhaust would have a diameter of approx 3 3/16.