Power Stop K6977 rear brake kit for the 2015-2021 Subaru WRX pairs drilled and slotted rotors with carbon-fiber ceramic pads to slow the car. This Power Stop brake kit is a daily-driver upgrade, and its rotors, pads and hardware are engineered to work together to increase stopping power.
- Z23 Evolution Sport kit with drilled and slotted rotors and carbon-fiber ceramic pads
- Carbon-fiber ceramic Z23 pad compound with a low-dust formula
- Multi-layer rubberized shims for virtually noise-free braking
- Drilled and slotted rotors that provide cooling
- Zinc-plated rotors to protect against rust and corrosion
Quick facts
- Part: Power Stop K6977 brake kit
- Also called: disc brake kit
- Fits: 2015-2021 Subaru WRX
- Position: Rear
- Condition: New
Pedal pulsation, squealing or longer stops can mean worn pads or rotors in a disc brake kit like this one. A seized caliper is another common cause of noise and uneven wear, so these signs alone do not prove the pads and rotors are at fault.
Fits
This kit fits the 2015-2021 Subaru WRX at the rear, and that car takes one kit.
Specifications
Fit and size
- Position: Rear
- Quantity per vehicle: 1
- Rotor outside diameter: 285.7 mm (11.25 in)
- Rotor stud/lug holes: 5
Build and materials
- Grade: Performance
- Rotor surface: Drilled and slotted
- Rotor construction: Full cast
- Rotor finish: Zinc plated
- Pad friction material: Carbon fiber ceramic
- Pad shims and brake lubricant: Included
- Condition: New
- Country of origin: China
In the box
Brake pads with multi-layer rubberized shims, drilled and slotted rotors, stainless-steel installation hardware and high-temperature ceramic brake lubricant. Calipers, caliper slides and brake hoses are not included.
Installation notes
- Bolt-on upgrade for stock brakes; no modifications are necessary.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this WRX brake kit right for the 2015-2021 Subaru WRX?
Yes. Power Stop K6977 is a rear brake kit listed for the 2015-2021 Subaru WRX, and the car takes one kit.
Does this Power Stop brake and rotor kit come with calipers?
No. Calipers, caliper slides and brake hoses are not included. The kit has the pads, rotors, stainless-steel hardware and high-temperature ceramic brake lubricant.
What size are the rotors in this Power Stop rear brake kit?
The rotors in Power Stop K6977 are 285.7 mm (11.25 in) in outside diameter with 5 stud holes. They are full cast, with a drilled and slotted surface and a zinc-plated finish.
How much less dust do these carbon-fiber ceramic pads make?
Third-party on-vehicle tests in Los Angeles showed on average 30% less dust than OE. The pads use a low-dust formula.
Does this kit need any modifications to go on stock brakes?
No. It is a bolt-on upgrade for stock brakes and needs no modifications. The stainless-steel hardware and ceramic brake lubricant come in the kit.
