Don’t feel bad. I purchased a set of these plugs also…about 2 months ago. I did the same thing you did and expected to see a BIG difference. I only purchased 2 thank goodness. I wanted to see how it worked and take one apart and do tests on the other. I then was going to buy 5 more for my car but from what I see…it is all Photo shop. They might be using some sort of light filter on the pictures. I even tried to increase the voltage over a normal system buy using a coil I have made for other tests…with no difference.

Karl