You remove the intake manifold for access to the coils. Then you remove the coils, followed by the plugs.
There are a few things to make sure of when you do this --
Always remove the ignition coil assembly by grasping at the spark plug boot, turning the assembly 1/2 turn and pulling straight back in a steady motion.
On the coils, loosen the screws by alternating back and forth. Do not lose the spacers under the coil when loosening the screws.
Then remove the spark plugs.