I was told it has 4 cylinders, but takes 8 plugs. Two to each valve. Intake, and outtake. That's why you have 8 wires. You have 8 plugs. It was initially designed to add performance, I guess.
A bit confusing though!
January, 14, 2011 AT 8:27 PM
Update: I think it should be 2 plugs to each cylinder.