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Except For Electric Brake Booster Model

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Master Cylinder Components With Torque Specifications (Except For Electric Brake Booster Model)
G14602142Courtesy of SUBARU OF AMERICA, INC.

Tightening torque: N.m (kgf-m, ft-lb) 

T: 13 (1.3, 9.6)