Give the front brakes on your daily driver a bolt-on upgrade with the Power Stop Z23 Evolution Sport Disc Brake Kit K4603, a matched set of drilled & slotted rotors and Carbon-Fiber Ceramic pads with hardware. It's a front-axle kit for the 2006-2007 Subaru B9 Tribeca, 2008-2014 Subaru Tribeca, 2015-2019 Subaru Legacy, 2015-2019 Subaru Outback, and 2015-2021 Subaru WRX — see the Buyer's Guide tab to confirm your exact engine and application.
This complete kit is engineered to improve the braking performance of the vehicle you drive every day, with the rotor, pads and hardware built to work together.
- Carbon-Fiber Ceramic Z23 pads: a low-dust compound Power Stop engineers to significantly enhance braking versus traditional ceramic pads, helping keep your wheels cleaner.
- Drilled & slotted rotors: provide maximum cooling and are zinc plated for protection against rust and corrosion.
- Multi-layer rubberized shims: deliver virtually noise-free braking.
- Ready to install: includes premium stainless-steel installation hardware and high-temperature ceramic brake lubricant for an easy, bolt-on upgrade with no modifications necessary.
Buy with confidence from the originator and industry leader of brake kits.
Frequently Asked Questions
What comes in the K4603 kit?
The Z23 Evolution Sport kit includes drilled & slotted front rotors, Carbon-Fiber Ceramic brake pads, premium stainless-steel installation hardware, and high-temperature ceramic brake lubricant.
Which vehicles does this kit fit?
It's a front-axle kit for the 2006-2007 Subaru B9 Tribeca, 2008-2014 Subaru Tribeca, 2015-2019 Subaru Legacy, 2015-2019 Subaru Outback, and 2015-2021 Subaru WRX. Check the Buyer's Guide tab to confirm your engine.
Do the rotors resist rust?
Yes. The drilled & slotted rotors are zinc plated to protect against rust and corrosion.
Are these pads low-dust?
Yes. The Carbon-Fiber Ceramic Z23 compound uses a low-dust formula that helps keep your wheels cleaner, and multi-layer rubberized shims provide virtually noise-free braking.
Is any modification needed to install this kit?
No. It's designed as a bolt-on upgrade for stock brakes with no modifications necessary, and it ships with the stainless-steel hardware and lubricant needed for installation.
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