Add some style and improve the performance of your Evo's motor with Agency Powers lightweight crank pulley. The CNC machined aluminum pulley is made from high grade 6061 material and finished in a gloss silver color. Each pulley has the Agency Power text laser engraved. The pulley has been broached for a perfect fit and the redesigned lightweight center gives you the best possible advantage over the competition. The Agency Power pulley is the same diameter as the stock pulley. Keeping the diameter the same allows no issues to occur with the alternator as under driven pulleys do sometimes. The pulley weighs 1.1 lbs whereas the stock pulley weighs around 4 lbs. The factory harmonic balancer reduces engine noise and vibration in the cabin and deleting this will NOT destroy your motor. The pulley is completely safe as a bolt on giving you between 3-6 horsepower. Tested and used on the Time Attack, drag, and street Evos, this mod has proven it's success on many vehicles world wide.