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The GSC Power Division S1 exhaust cam is a billet right-side exhaust camshaft specified for 2008-and-later Subaru WRX STI models using the EJ257B engine, with 266/264 profiles. Offered as a single exhaust camshaft, it is intended for use where a right-side billet exhaust cam is required for that engine and model range, serving as a direct-fit performance component for valve timing modification or replacement.
GSC P-D 08+ STi EJ257B S1 Cams 266/264 Billet Right Exhaust Cam Only
