i vote hell no. a website of graphics and colorful charts that don't really tell you anything... plus what ignites 99.9999% of your fuel/air mixture is the fuel/air mixture next to it. I don't see how these can hurt (since they're just a spark plug with a capacitor) but i wouldn't try to justify it with power or mpg increases. the only graphic that they had that said anything was that the actual explosive pressure was higher at the point of ignition. assuming these plugs are actually capable of making gas into super gas, you're seals are made for specific tolerances.

then again i could be wrong. i would love to hear a real-world review, but for my $, i'll be sticking to the iridiums. it's a quality plug.