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Ok, so when you are using a 4-2-1 header, do you want a header that matches the firing order?
for instance the Zetec fires 1-3-4-2 and the focus sport header pairs up the 1st and 3rd and also pairs up the 4th and 2nd.
What is the ideal pattern for this? I've done my research and it's being discussed over in the SPI forum, but I figured I would post here to see if there was anyone who is an exhaust guru over here. (link to thread )
for instance the Zetec fires 1-3-4-2 and the focus sport header pairs up the 1st and 3rd and also pairs up the 4th and 2nd.
What is the ideal pattern for this? I've done my research and it's being discussed over in the SPI forum, but I figured I would post here to see if there was anyone who is an exhaust guru over here. (link to thread )
