Perrin Lightweight Crank Pulley - Blue For WRX 2019-21 / Forester FA/FB Engines w/Large Hub 2016-2018 | PSP-ENG-104BL

The PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the gas pedal.. 

Decrease Rotational Mass
The PERRIN Lightweight Crank Pulley and Hub weighs just 2 lbs, which is 1 lb lighter than the stock OEM crank pulley. This reduction in weight from the crankshaft is equal to removing more than 100 lbs of vehicle weight! Throttle response, horsepower, and torque are all increased with this easy-to-install part

Precision Hub Included
For perfect fitment, each PERRIN Lightweight Crank Pulley includes a precision machined hub. The front oil seal surface is highly finished to meet OEM levels

Construction
The PERRIN Crank Pulley is machined from 6061T6 billet aluminum and the hub from 4130 steel.