Remove negative cable from battery
remove FRCs
unbolt coil packs and move them outa the way
remove AIR bolts
remove alternator from bracket
remove manifold bolts(leave the middle two in for now)
jack up car and place on stands
unplug 02 sensors, and unbolt H pipe from manifold
loosen the 2 bolts holding H pipe to car(leave them in)
remove the 2 center bolts and lift the manifolds out from the top
replace sparks plugs at this time, easy to get to
if you're doing shorties, then drop them in from the top
if you're going long tubes, you'll have to remove the H pipe and bolt up your X pipe
Uncrew 02 sensor from manifold and place in header
reverse the procedure using the stock metal manifold gaskets
That's it in a nutshell. It really isn't difficult once you get in there and get your hands cut all to hell. I mean dirty.