Originally Posted by 1Bad00SS

Can you explain the difference?
http://www.modularfords.com/forums/2...one-20647.html
You force more air throught you should be a noise change.
My assumption was this, more air=more noise. From the cars i have seen ported and not ported on the same pulley system, they sounded different. If not, fuck it. I never claimed to know everything about cars, I was just going with the little personal experience i had with the 03-04 cobras.