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The Brembo GT big brake kit for 2006–2011 GS300 rear applications combines four-piston cast calipers with two-piece 345×28 mm rotors. Rotors are slotted in a Type-3 pattern and finished in silver, delivering a Brembo-specified two-piece rotor and caliper assembly sized for the GS300 rear fitment listed in the description.
Brembo 06-11 GS300 Rear GT BBK 4 Piston Cast 2pc 345x28 2pc Rotor Slotted Type3-Silver
