"mighty" spark plugs

[MrShorty]

Went to inspect my spark plugs (look for fouling, check gap, etc) and, instead of finding the Autolite plugs I put in in the spring, I find a set of "Mighty Power Core" spark plugs that must have been put in by the shop who installed my engine this summer (even though I told them the spark plugs were new and didn't need changing. They didn't charge me for the plugs, so I guess that's ok). Amidst all of the recommendations to use Motorcraft or Autolite plugs in Ford engines, does anyone have any experience with these plugs?

http://www.mightyap.com/product/tuneup.htm

 

[aldive]

I have never heard of them.