Perrin Alternator Pulley Black 2006-2014 WRX / 2007-2021 STI / 2012-2016 Impreza / 2006-2013 Forester XT / 2005-2009 Legacy / 2004-2009 Outback COMBINED_2015-2021_WRX/STI known for precision engineering and

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Perrin Alternator Pulley Black 2006-2014 WRX / 2007-2021 STI / 2012-2016 Impreza / 2006-2013 Forester XT / 2005-2009 Legacy / 2004-2009 Outback COMBINED_2015-2021_WRX/STI known for precision engineering andPerrin Alternator Pulley Black 2006 2014 WRX 2007 2021 STI 2012 2016 Impreza 2006 2013 Forester XT 2005 2009 Legacy 2004 2009 Outback Lightweight CNC Aluminum Performance Alternator Pulley Overview The Perrin Alternator Pulley is a precision engineered upgrade designed to reduce rotational mass on a range of Subaru models including the 2006 2014 WRX, 2007 2021 Subaru WRX STI, 2012 2016 Impreza, Forester XT, Legacy, and Outback. By replacing the