Energy Suspension's mounts are inserts. They way they help reduce wheel hop is because you motor isn't moving around as much and more force is kep on your suspension. It' not a night and day difference on the wheel hop, but you'll notice less weight transfer going around turns. If you wanna get real mounts look @ the prothane stuff. Better made, and you actually remove all your rubber in one of the mounts (civic's atleast).

There is more vibration obviously.