If you can't get OEM plugs, I would go NGK or Bosch personally.<p><A HREF="http://www.ngksparkplugs.com/part_finder/index.asp" TARGET="_blank">http://www.ngksparkplugs.com/part_finder/index.asp</A><BR><BR>
<i>Modified by juve021 at 5:14 AM 5-16-2009</i>
i think i went to advanced for the Bosch coppers same as OEMs or pretty much equal just stay away from those champions they're junk you cant go wrong with bosch or ngks which Advanced and AZ both carry and alot cheaper then getting them from the dealer for the same crap. just make sure they gapped right .
My car was misfiring at high boost recently. I had the Bosch coppers, and the gaps had grown to 1mm! New platinum plugs, gapped to 0.7mm and the car goes like stink again. I had the coppers a bit too long in there, 15k miles. It's easy to get used to slowly reducing performance.