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GSC Power Division's billet R1R camshafts are specified for the Mitsubishi Evolution IX with the 4G63T engine, listed with 260/268 profiles. These billet rally camshafts replace stock profiles to alter valve timing and lift characteristics for motorsport or high‑duty applications where a purpose‑built cammed profile is required.
GSC P-D Mitsubishi Evolution 9 4G63T 260/268 Billet R1R Rally Camshafts
