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Kart Boy Crank Pulley FRS/BRZ Perrin Lightweight Crank Pulley 15-17 WRX / FRS / BRZ Torque Solution Crank Pulley FRS/BRZ
Lets the engine rev faster Reduces Rotational Weight Lets the engine rev faster
Grimmspeed Crank Pulley 15-17 WRX / BRZ / FRS Go Fast Bits Pulley Kit FRS/BRZ Fluidampr Steel Internally Balanced Damper 15-17 WRX / BRZ
Reduce Rotational Weight Includes, crank, water pump, and alternator pulleys No tuning or maintenance required