Home > Subaru > WRX 2015-2020 > Engine Build > Crankshafts / Pulleys
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Perrin Lightweight Crank Pulley 15-17 WRX / FRS / BRZ Grimmspeed Crank Pulley 15-18 WRX / BRZ / FRS GrimmSpeed Lightweight Crank Pulley 15-21 WRX / BRZ / FRS
Reduces Rotational Weight Reduce Rotational Weight Decrease rotational mass
Fluidampr Steel Internally Balanced Damper 15-17 WRX / BRZ
No tuning or maintenance required