Excessive engine vibration can be a silent killer. It can rob plenty of precious horsepower as well. High performance balancers/dampers constantly fight the evils of these vibrations and keep the moving parts of your motor running smoothly and in harmony.
Tip: Although most specialty tools can be rented these days, you should definitely invest in a quality balancer remover and installer. They will more than make up for the initial cost in the time saved alone.