I just installed some E3 spark plugs E3.70

I just installed some new E3 spark plugs ( E3.70 ) in my 07 GT...They are a 1 piece plug!!!!! I had the HT1's in there. So far the "Butt Dyno" is telling me that these are working pretty well. 

The motor feels stronger and smoother... Maybe there some truth about these plugs, only time will tell.... I'll see this week if my gas mileage is any better.