Cusco
Cusco Pro-Adjust Kit, MZ Rear LSD, Subaru STI (GC8/GDB/GRB/GVB)
$3,162.86
Taxes and shipping shown at checkout. Typical delivery is 3 to 7 business days across Canada.
✓ Confirmed-fit parts — add your vehicle in your Garage to check fitment.
Pro-Adjust service components for the Cusco MZ helical rear LSD on R180-equipped GC8, GDB, GRB, and GVB STI models. Helical units don't wear the way plate types do, but preload can still drift from spec after high-mileage track use. This kit retunes it on the installed unit.
- Retunes preload characteristics on an installed Cusco MZ helical rear LSD
- For R180-equipped GC8, GDB, GRB, and GVB STI models
- Worthwhile maintenance after high-mileage track use
Fits: Subaru STI (GC8/GDB/GRB/GVB), R180 rear differential with Cusco MZ LSD.


