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The Cusco RS 1‑Way rear limited‑slip differential is a direct‑fit upgrade for select Subaru Impreza platforms including GDA and later BR9, BM9, BP5, SH5 and SHB chassis. It provides controlled torque transfer to the rear axle to reduce inside‑wheel spin and improve traction under acceleration. Ideal for drivers seeking more consistent driveline behavior in street and occasional track use.
Cusco LSD RS 1 Way(1&2) Rear GDA/Impreza/BR9/BM9/BP5/SH5/SHB
