Cusco
Cusco Pro-Adjust Kit MZ LSD Front GDB GRB/GVB STI
$3,118.31
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Part price$3,118.31
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✓ Confirmed-fit parts — add your vehicle in your Garage to check fitment.
Pro-Adjust components for the Cusco MZ helical front LSD on GDB, GRB, and GVB Subaru STI — retune preload on the installed unit without pulling and replacing the whole diff. Available separately from the rear Pro-Adjust kit so you can service front and rear independently.
A proactive maintenance step that keeps the front diff performing consistently across its service life.