Except For STI Model

NOTE: Before installation, remove the pad clip and remove mud, foreign matter and rust from the caliper body assembly and the support - front disc brake.

Apply a thin coat of grease to the support - front disc brake.
Grease:

An item contained in the pad kit, Molykote M7439 or equivalent

Courtesy of SUBARU OF AMERICA, INC.
Check the brake pad. <Ref. to INSPECTION , Front Brake Pad.>
Apply a thin coat of grease to the pad clip, both sides of the shim - disc brake front inner and the shim mounting surface of the pad - disc brake front.
Grease:

Pad clip (A): An item contained in the pad kit, Molykote M7439 or equivalent

Shim and pad (B): An item contained in the pad kit or Molykote AS880N

Fig 1: Identifying Grease Applying Area On Pad Clip, Shim And Pad
Courtesy of SUBARU OF AMERICA, INC.
Install the pad clip.
Press back the piston with a disc brake piston tool as needed.
CAUTION: When pressing back the piston, the clearance between pad and disc rotor becomes large, which makes the brake pedal effort softer. After the installation of front wheel, be sure to perform the adjustment of the clearance and the pedal effort by depressing the brake pedal several times.
Install the pad - disc brake front.
CAUTION:
- Be sure to install so that the pad return spring faces the input side of the direction of disc rotor rotation, as shown in the figure.
- Correctly install the pad return spring to the supporting surface of the pad clip as shown in the figure.
- If the pad return spring is deformed or damaged, replace the pad - disc brake front with a new part.
Fig 2: Installing Pad - Disc Brake Front
Courtesy of SUBARU OF AMERICA, INC.

NOTE: Install the pad indicator in proper direction.

Fig 3: Identifying Pad Indicator
Courtesy of SUBARU OF AMERICA, INC.
Install the caliper body assembly.
Tightening torque:

27 N.m (2.8 kgf-m, 19.9 ft-lb)
Install the front wheels.
Tightening torque:

120 N.m (12.2 kgf-m, 88.5 ft-lb)