Impreza WRX STI F4-2.5L Turbo (2008)
2) Remove the adjusting hole cover from the disc rotor.
3) Turn the adjusting screw using a flat tip screwdriver until the brake shoe is in close contact with the disc rotor.
4) Turn back (upward) the adjusting screw 3 to 4 notches.
CAUTION: Check there is no brake drag.
5) Install the adjusting hole cover to the disc rotor.
6) Adjust the parking lever stroke.
LEVER STROKE
1) Adjust the shoe clearance before adjusting lever stroke.
2) Remove the parking lever cover.
3) Pull the parking brake lever hard 3 to 5 times.
4) Turn the adjusting nut until the lever stroke is at the specified value.
Lever stroke: 7 to 8 notches when pulled with a force of 200 N (20.4 kgf, 45 lbs.)
5) Check there is no brake drag.
6) Install the parking lever cover.