Is the AEM Bypass Valve a waste of money?
This heavily depends on what region of the country you live in, and how paranoid you are. In order for a vehicle to hydrolock its engine, it must suck up a considerable amount of water, at least a liter. A drop or two of water isn’t going to turn your engine into a very expensive paperweight, so in most cases, the need for it is a bit exaggerated. However, for those who wants to play it safe or live in regions where it rains often or have poor sewage system, it would be a worthwhile investment. For those who lives in dry states like Arizona or New Mexico, it’s unnecessary.
