Originally Posted by DoktorT
How many manufacturers in the world use WIZBANG spark plugs as factory install?? NONE, ZERO, NADA
Heaps...that means lots and lots. If you haven't pulled many sparkplugs in your life, then get a sparkplug catalogue from any manufacturer, in the front section there will be photographs - 2,3, and 4 electrodes, extended tips, shielded electrodes, V grooves, taper seats etc. Wizbang everywhere.
Iridium ? I don't see the point, but try it and see. I'm using Bosch W78 Plus 4's. Doubled my HP and halved the fuel consumption.