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The Perrin lightened crank pulley for 1993–2014 Subaru Impreza (including 2002–2014 WRX) and select 2004–2021 STI applications (without AC) is a purpose-built, reduced‑mass crank pulley. As a lightened replacement it reduces rotating mass to help sharpen engine response. The pulley is offered as a direct swap option to replace the factory crank pulley on supported Subaru models.
PERRIN 93-14 Subaru Impreza (Incl. 02-14 WRX) / 04-21 STI (w/o AC) Lightened Crank Pulley - Black
