Seller notes

Perrin Lightened Crank Pulley Black Subaru WRX & STi 2015+ Weight reduction is key to making the best use of any available HP and torque. In no place on their vehicle is this more important than the rotating mass found in the engine. The PERRIN Performance Crank Pulley is 4-pounds lighter (5-pounds for Scions!) than the stock crank pulley. This reduction is equal to removing more than 100 lbs of vehicle weight! Throttle response, horsepower and torque are all increased with this easy to install ...

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