Home > Subaru > WRX 2015-2018 > Engine Build > Crankshafts / Pulleys
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Perrin Lightweight Water Pump Pulley 15-17 WRX Grimmspeed Crank Pulley 15-17 WRX / BRZ / FRS Perrin Lightweight Crank Pulley 15-17 WRX / FRS / BRZ
Reduces Rotational Weight Reduce Rotational Weight Reduces Rotational Weight
GrimmSpeed Lightweight Crank Pulley (15 - 18 WRX, BRZ / FRS) Fluidampr Steel Internally Balanced Damper 15-17 WRX / BRZ
Decrease rotational mass No tuning or maintenance required