Wiseco Subaru WRX 4v R/Dome 8.4:1 CR 92.5 Piston Shelf Stock Kit

Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strengthArmorGlide? Skirt Coating: seizure resistant, friction reduction, and quieter operationFully machined crown featuresPrecision ring grooves, anti-detonation groove, and additional ring seal improving featuresForced pin oilingDesigned and built to withstand heavy to severe duty performance applicationsThis Part Fits: Year Make Model Submodel 2009-2010 Subaru Impreza 2.5 GT 2006-2011 Subaru Impreza 2.5i 2010-2011 Subaru Impreza 2.5i Premium 1998-2001 Subaru Impreza L 1998-2004 Subaru Impreza Outback 2005-2011 Subaru Impreza Outback Sport 1998-2005 Subaru Impreza RS 2002-2004 Subaru Impreza TS 2002-2011 Subaru Impreza WRX 2006-2007,2010-2011 Subaru Impreza WRX Limited 2009-2011 Subaru Impreza WRX Premium 2004-2011 Subaru Impreza WRX STI 2007,2011 Subaru Impreza WRX STI Limited 2010 Subaru Impreza WRX STI Special Edition 2006-2007 Subaru Impreza WRX TR