The GSC S3 billet camshaft kit for 2002–2005 Subaru WRX with the EJ205 engine contains S3 billet camshafts listed as 280/280 and is intended as a cam upgrade for that engine series. These cams replace the stock camshafts to provide the S3 280/280 lift profile for compatible EJ205 valve trains, and proper complementary tuning and component matching are required for installation.
GSC P-D 02-05 Subaru WRX EJ205 S3 Billet Cams 280/280