X5 4.8, going into valve covers - parts replacement

[Motorsport1207]

Going into valve covers to replace gaskets, also check stamping on levers. While I am in there I was thinking to replace all plugs, ignition coils, CCV diaphragm,

What plugs is recommended, thinking about the NGK IZFR6H11 Iridium

Is there anything else I should be looking to check and or replace

Ted


06 4.8is Imola Red Euro Xenon, Eisenmann Sport
99 M3 Dinan CAI & Exhaust
03 330 XI, 89 325ic, 89 325ix
87 Benz SDL