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The GSC Power Division Billet S1 camshaft kit for Subaru EJ257 with Dual AVCS features S1 cam profiles listed as 266/264 in billet construction. This camshaft set is supplied for the EJ257 dual AVCS application and replaces the stock camshafts with the S1 profile pair. The listing identifies the cam durations and billet manufacture, providing the specified S1 266/264 cam profile for that engine.
GSC P-D Subaru EJ257 w/Dual AVCS S1 Cams 266/264 Billet
