Brembo 08-14 WRX STI Rear GTS BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type1-Black HA

If you're looking to significantly improve the stopping power and heat management on your 2008-2014 Subaru WRX STI, this rear Big Brake Kit from Brembo is a serious consideration. This kit is designed to handle the demands of spirited driving and track use, offering a substantial upgrade over the factory braking system. The core of the kit includes robust 4-piston cast iron calipers paired with large 345x28mm two-piece rotors that feature a Type 1 slotted design.

The 4-piston calipers are built to provide increased clamping force and better pad wear distribution compared to smaller factory calipers. This means more consistent braking performance, especially under heavy use where heat can become a major factor. The two-piece rotor construction, with its cast iron friction ring and aluminum hat, helps to reduce unsprung weight and allows for better thermal management. The Type 1 slots on the rotor surface are specifically designed to help vent gases and heat away from the pad surface, which is crucial for preventing brake fade during prolonged braking events. The black caliper finish adds a clean, performance-oriented look to your STI's wheels.

This kit is a comprehensive upgrade, intended to provide a noticeable difference in braking feel and performance. While it's a significant investment, it's built with Brembo's reputation for quality and performance in mind. Ensure you have adequate clearance within your wheels for the larger caliper and rotor assembly; checking wheel fitment is recommended before installation.