The Power Stop Z23 Evolution Sport rear kit (MPN K4631) is a complete rear pad-and-rotor set for the 2013-2016 Subaru BRZ. It pairs carbon-fiber reinforced ceramic pads with drilled and slotted zinc-plated rotors, so the pads and rotors are matched as one system rather than bought separately. The kit also includes rubberized shims, stainless-steel installation hardware, a pin bushing kit, and high-temperature ceramic brake lubricant, which means you don't have to source those parts separately.
The reason to choose this over stock or a cheaper pad-only swap is that the carbon-fiber ceramic compound is designed to stop more firmly than standard organic or semi-metallic pads while producing less brake dust on your wheels. The drilled and slotted rotors help shed heat and gas during repeated stops, and the zinc plating helps protect the rear rotors from rust. Owners on user forums often argue that the pads do most of the real work on these cars, and some caution that drilled rotors can crack under hard track use, so this kit suits street-driven and occasional spirited driving better than sustained track abuse. For a BRZ-specific upgrade, search terms like 2013-2016 BRZ rear Z23 pads, carbon-fiber ceramic rear brake kit, and drilled slotted rear rotors will bring up this exact application.
Power Stop kits are matched to specific rear rotor types, so fitment depends on whether your car has solid or vented rear rotors. Check your existing rear rotors before ordering, and confirm the exact application for this part number with the manufacturer.
Owners on user forums report mixed experiences. Some say drilled and slotted rotors are prone to cracking under heavy use, while others find them fine for street driving. Regular inspection of the rotors for cracks and wear is a sensible habit with any drilled rotor.
This is a moderate DIY job for someone comfortable with basic brake work. A jack, jack stands, a socket set with a torque wrench, a caliper piston tool, and a wire brush are the core tools. A user-forum pad-change write-up for the BRZ describes loosening the caliper's two 14mm bolts, swinging the caliper up while it remains attached to the brake line, and taking care not to stress that line. Confirm the procedure for the rear, since rear caliper layouts can differ. Common gotchas include reusing the old rubberized shims or clips incorrectly, forgetting to apply the included ceramic lubricant to the pin and slide points, and skipping the bedding-in procedure for the new pads.
