The workshop manual show no special tools or procedures but it is awkward as they give 1.4 hours labor to replace the plugs. Be careful not to damage the spark plug wires on removal, it is good work practice to apply dielectric grease to the where the plug and plug wire meet to allow for easier removal next service.
There is a special plier made for the purpose of removing the Spark Plug Shield
and can found most likely in a professional Auto Parts Supply. It should cost about $8.00. Using this tool will facilitate removing the Spark Plug Shield correctly.