ENDLESS EDYCXGRB Front & Rear Brake Kit Racing MONO 6 & 4r for SUBARU Impreza WRX STI (GRB / GRF) Brembo Caliper / PCD 114.3

Description ENDLESS EDYCXGRB Front & Rear Brake Kit Racing MONO 6 & 4r for SUBARU Impreza WRX STI (GRB / GRF) Brembo Caliper / PCD 114.3

The Racing MONO6 is a monoblock caliper forged under thousands of tons of pressure. After four years of development, including one year from prototype completion, repeated testing, racing use, and numerous specification changes, it achieved the lightweight, high-rigidity body required for competition. The challenging piston cylinder machining was overcome using advanced special techniques, and the finished body is treated with ultra-hard anodizing.

The RacingMONO4r is a 4-piston version of the monoblock caliper, forged under thousands of tons of pressure. Through repeated testing and detailed design refinements, it was developed to achieve weight reduction, durability, and heat dissipation. It can accommodate wheels as small as 15 inches, expanding the range of compatible wheels.

The Racing MONO caliper body uses ultra-hard anodized aluminum. The rotor bell housing features a Toughram coating, which offers superior adhesion and corrosion resistance for greater durability than standard colored anodizing, even under high-temperature circuit racing conditions.

• Monoblock calipers forged under thousands of tons of pressure
• Advanced special techniques used for piston cylinder machining
• Ultra-hard anodized aluminum caliper body
• Toughram-coated rotor bell housing

Specifications:

• Caliper: RacingMONO6 (EC6404FN) / RacingMONO4r (EC4606N)
• Brake pad type: RCP121 / RCP147
• Brake disc size: 370 x 34 mm / 332 x 30 mm
• Brake hose: ECBHGRBF / ECBHGRBR