[Davisca455]

Pretty much the same for the G-Power kit:

Remove the cabin filter housings and the cowl tray.
Remove the blower discharge pipe.
Remove the blower belt and blower pulley.
Remove the blower mount brackets.
Loosen the oil drain from the bottom of blower pump.
Remove the blower pump from the airbox.
Remove the air filters.
Remove the airbox.
Remove the valve cover coil shield.

I use a standard 5/8 spark plug socket and a 6" wobbly extension for the front 6 cylinders.
For the drivers side rear cylinder, I add a universal joint to the extension.
For the passenger side rear cylinder, I add the universal joint and a 9" extension (don't have another 6" extension).
55,000+ miles on the NGK R2556B-9 plugs.
They still look ok to me though.