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GSC Power Division billet S1 intake camshaft for 2006–2007 Subaru WRX 2.5L and 2004–2007 Subaru WRX STI is supplied as a left‑intake camshaft only. It is a direct cam upgrade option aimed at enthusiasts working on compatible Subaru EJ‑series engines and should be used where a left intake camshaft replacement or specific cam profile change is required for those model years.
GSC P-D 06-07 Subaru WRX 2.5L/ 04-07 Subaru STi S1 Cam - Left Intake Only
