PowerStop K6977 Z23 Rear Brake Kit 2015-21 Subaru WRX w/o EyeSight

Vehicle Fitment

• 2015-2021 Subaru WRX (2.0L Turbo H4, AWD) - without EyeSight Driver Assist Technology; 2-piston front / 1-piston rear calipers

Fitment Notes

• Rear axle kit only - for a complete front and rear Z23 upgrade on this platform, see PowerStop K6932
• Fits WRX models WITHOUT EyeSight Technology ONLY - WRX models with EyeSight use a larger rear rotor (11.81 in. / 300mm) and require a different kit
• Does NOT fit WRX STI - the STI uses larger Brembo rear calipers with significantly larger rotors requiring dedicated kits
• 5-lug bolt pattern (5x114.3mm / 5x4.5 in.)
• No special modifications required - direct bolt-on installation

Features

• Z23 Carbon-Fiber Ceramic pad compound delivers enhanced stopping power and lower dust versus factory pads
• Drilled & slotted solid rear rotors maximize heat dissipation and clear gas and debris from the friction surface
• Low-dust formula validated through on-vehicle third-party testing - 30% less dust on average versus OE
• Dual-layer high-temp rubberized shims provide virtually silent braking
• Silver zinc dichromate plated rotors resist rust and corrosion
• G3000 grade iron castings built to strict OE tolerances for crack resistance and durability
• Includes premium stainless-steel installation hardware and high-temp ceramic brake lubricant
• Bolt-on upgrade - no modifications needed

Specifications

• Kit Coverage: Rear Only
• Rear Rotor Outside Diameter: 11.26 in. (286 mm)
• Rotor Construction: Full Cast Iron - G3000
• Rotor Type: Solid
• Surface Type: Drilled & Slotted
• Rotor Finish: Silver Zinc Dichromate Plated
• Stud/Lug Hole Quantity: 5
• Bolt Circle Diameter: 5x114.3 mm (5x4.5 in.)
• Pad Compound: Z23 Carbon-Fiber Ceramic
• Pad Shims Included: Yes - Dual-Layer Rubberized

Included Components

• 2x Rear Drilled & Slotted Zinc-Plated Brake Rotors
• 1x Rear Z23 Carbon-Fiber Ceramic Brake Pad Set (with rubberized shims & hardware)
• 1x Stainless-Steel Installation Hardware Kit
• 1x High-Temperature Ceramic Brake Lubricant

Product Description

The PowerStop K6977 Z23 Evolution Sport Rear Brake Kit is the rear upgrade for the 2015-2021 Subaru WRX without EyeSight - the rear companion to the complete K6932 kit. The Z23 Carbon-Fiber Ceramic pads deliver improved stopping power and significantly less dust than factory pads at the rear axle, well suited to the WRX's turbocharged performance character. G3000 iron rotors are precision-cast to OE tolerances for a direct bolt-on fit with no modifications required.

Confirm EyeSight status before ordering - WRX models with EyeSight use a larger rear rotor and require a different kit. Does not fit WRX STI. For a complete front and rear Z23 kit on this platform, see K6932. For the Z26 Street Warrior version of this rear kit, see K6977-26.