Thinking about replacing the plugs in my '04 GT2 and remembered hearing someone say a while back something about the platinum and iridium maybe doing some major damage to heads etc.
What is the recommended performance plugs for such a car or should I not worry about which onces I get since my car is not SC or doesn't have a turbo.

I was looking at the PLATINUM IR FUSION BOSCH plugs.

since your's isn't boosted in any way then, there is no need for any special plugs.

i would just go with some good quality ones from Bosch.

all in all, spark plugs really aren't going to give much if any real performance boost

Thanks that is nice to know.