Zero/Sports WRC Crank Pulley (Blue)

The Zero/Sports WRC Pulley is a direct replacement for the WRX/STi crankshaft pulley. The factory pulley weighs in at a heavy 5.4 pounds and is a perfect place to shed some weight. Removing weight from a moving part of the engine is even more critical than removing dead weight from any other part of a car. Removing the weight from the pulley allows the engine to move faster with less effort, allowing for faster revving response and the production of more horsepower and torque.The Zero/Sports pulley, made of lightweight aluminum, weighs in at a very light 1.4 pounds. The pulley will remove a full four pounds of weight from your engine, which adds up to a big difference!