I'm just bought a new car ('96 Nissan 200sx), and am going to be replacing the spark plugs. I was wondering what peoples favorite brand spark plugs are around here (I don't want to buy the cheapest, these will make my car run plugs, I want to try to get some decent fuel economy out of them). Also I was looking online and came across the Pulse Spark plugs made by Pulstar (http://www.pulstarplug.com/howtheywork.html). Pulstar seems to claim these plugs make a huge improvement over conventional plugs. I am wondering if anyone has had any personal experience with these plugs, and if they are worth the extra cash?