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The Cusco Type RS single-way limited-slip differential for front fitment on GDB(C), GRB and GVB STI Impreza models. Engineered to alter torque transfer at the front axle, the RS1 unit improves traction consistency during acceleration and turn-in. It serves as a fitment-specific front LSD option for STI owners seeking clearer front-end behavior without extrapolating beyond the explicit vehicle references.
Cusco LSD RS1 Front GDB(C) GRB GVB STI Impreza
