Best Plugs? - 20V Failed Inspection!

[kzildjian at home.com]

Hello All,
  I need to replace the plugs, wires, cap, rotor, and O2 Sensor.  I
failed inspection for CO2 and I have no idea why.  So I figured a good
place to start is to change the plugs and other ignition/emission
components.  Should I use the OEM copper Bosch plugs, or should I go
platinum??  Any and all help is appreciated.  Thank You.



-- 
Tim Meritzis         
TCM Productions 
1990 Audi CQ 20V
1984 Subaru Brat D/L 
(732) 241-2931