Brembo 08-14 WRX STI Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type1-Yellow

If you're looking to significantly upgrade the braking performance on your 2008-2014 Subaru WRX STI, especially for track days or spirited driving, this Brembo GT Big Brake Kit for the rear is a serious consideration. This kit replaces your factory rear brake setup with a much larger and more capable system designed to handle the demands of high-performance driving. It's about getting more stopping power and better heat management when you need it most.

At the heart of this kit are the 4-piston cast aluminum calipers, which offer increased clamping force over stock. These calipers work with substantial 345x28mm two-piece slotted rotors. The two-piece design helps manage heat by allowing the rotor hat to expand and contract independently from the friction surface, reducing the risk of warping. The slots on the rotor face are there to help vent gases and dust away from the pad surface, maintaining consistent braking performance even under heavy use. The calipers come in a distinctive yellow finish, adding a visual performance cue to your STI.

This is a comprehensive rear brake upgrade. It includes everything needed to install the larger calipers and rotors, transforming your STI's rear braking capability. When installing a big brake kit like this, it's always a good idea to ensure your brake fluid is fresh and properly bled, and consider upgrading your brake lines to stainless steel braided ones for a firmer pedal feel. This kit is designed to be a direct replacement for the rear axle, providing a substantial improvement in stopping power and fade resistance.