#1 - please pay attention to the forum you are posting in. This thread does not belong in the FAQ emporium
#2 - this is a web site dedicated to putting PCs in cars. While there will be people here who will answer your question, it is in no way related to this forum
#3 - performance plugs have more spark most of the time for a more likely burn. There's also different temperature plugs which means that the spark will ve at a different temperature. Some times running a hotter or a colder plug is desired.
If you don't have any mods done to your car, stick with the stockers.