The GiroDisc rear titanium pad shield for 2018+ Subaru WRX STI is a rear-specific shield sized for the STI braking setup and named for its titanium construction. The product description explicitly notes that installing these rear shields requires trimmed rear pads, so buyers should confirm pad condition and trimming requirements when fitting them to 2018 and later WRX STI rear brake assemblies.
GiroDisc 2018+ Subaru WRX STI (Requires Trimmed Rear Pads) Rear Titanium Pad Shields