GiroDisc 2018+ Subaru WRX STI Slotted Front Rings

These high-performance replacement rings are designed to bring the WRX STI's braking system back to full strength. They bolt directly to existing Girodisc aluminum hats using the included floating hardware kit. Each ring is CNC-machined from Girodisc’s proprietary high-carbon iron alloy for superior thermal control, consistent bite, and fade-resistant performance in street or track conditions. The slots are designed to keep brake pads clean of debris, enhancing performance. Compatible with Subaru WRX STI (2018 and newer, Brembo 6-piston front calipers) equipped with Girodisc 340 mm two-piece front rotor systems. Not compatible with OEM one-piece rotors or earlier 4-piston STI setups.