Passenger side is the easiest on my car, but jacking up on side of the engine at a time is a necessity. Driver side is a bear. My starter has to come out at the same time as the header comes loose. And of course the "Z" bar is in the way also. I use a floor jack with a 2X4 that is longer than the depth of the oil pan. Jack one side at a time. Be patient or have allot of booze on hand.