Cusco
Cusco Pro-Adjust Kit RS LSD S14 Kouki Silvia
$3,340.57
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Part price$3,340.57
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✓ Confirmed-fit parts — add your vehicle in your Garage to check fitment.
Pro-Adjust service kit for the Cusco RS plate-type LSD in the late S14 Silvia/240SX rear differential. Shims and springs to retune the diff's preload and ramp bias without pulling and replacing the unit — useful after track use or if you want to shift the engagement character to suit a change in tire or suspension setup.
Cheaper and faster than a full diff swap when the diff itself is still in good shape.