According to their website, they are iridium....I had the same thought, though. They don't advertise it as such on their landing page.
http://www.pulstar.com/faqs.htm
Better to stick with NGK. Messing around with something that has no issues and trying to fix it makes no sense to me.
Better to stick with NGK. Messing around with something that has no issues and trying to fix it makes no sense to me.