To change the spark plugs you just need a 5/8" spark plug socket (Don't hold me to that it may be 3/8" ) ), socket and long extension.
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
) 
), socket and long extension. 