A. No. We have the accumulated data of many thousands of installations, some since 1984. For example, here’s a video of my 1983 Honda Civic (click)
In addition, we have had world class mechanics test the combustion enhancement techniques we’ve developed.
They tell us they learned more from our literature than they were taught while learning to be a mechanic. They installed and use our technology.
In all the years and thousands of installations our technology (properly applied) has not damaged a single engine.