PowerStop Z26-2363 Z26 Street Warrior Rear Pads for 20-22 Mustang GT500/Mach 1

Vehicle Fitment

• 2020-2022 Ford Mustang Shelby GT500 (All configurations; 5.2L Supercharged V8 "Predator"; RWD; Rear)
• 2021 Ford Mustang Mach 1 (All configurations; 5.0L V8; RWD; Rear)

Fitment Notes

• This is a rear axle brake pad set only. No rotors are included. This part is specific to the rear Brembo caliper package fitted to the GT500 and Mach 1 - it is not compatible with standard Mustang GT or EcoBoost rear calipers, which use a different pad shape covered by other PowerStop part numbers.
• The 2020-2022 Shelby GT500 uses aluminum monobloc Brembo 4-piston rear calipers (30mm and 32mm pistons) finished in red with the Brembo logo. These calipers are distinct from those on the standard S550 Mustang GT and require pads in the D-2363 pad shape.
• The 2021 Mustang Mach 1 also uses upgraded Brembo rear calipers compatible with the Z26-2363 pad specification. The Mach 1 was a one-year offering, produced for model year 2021 only.
• The Shelby GT500 was the final and most powerful S550-generation Mustang, produced from 2020 through 2022. There is no 2023 GT500 - the GT500 nameplate did not carry over to the 2024+ S650 Mustang generation, making 2022 the last model year.
• The GT500 uses an electronic parking brake (EPB) system that acts on the rear rotors independently of the rear service calipers. The EPB system is not affected by this pad replacement.

Features

• Z26 Street Warrior carbon-fiber ceramic compound - PowerStop's highest street-performance formula, with a carbon-fiber-reinforced ceramic matrix that delivers outstanding fade resistance and high-temperature friction stability at the severe braking demands generated by a 760 hp supercharged V8 pushing 4,200+ lbs from road speed
• Engineered specifically for the rear Brembo monobloc 4-piston caliper installed on the GT500 and Mach 1 - matching the abutment clip seating, backing plate geometry, and piston contact face of the GT500's unique rear caliper to ensure full-face contact and even pad wear
• Thermal-scorched pad surface removes volatile compounds before installation for faster transfer film development on the rotor, delivering confident full-performance braking feel in fewer miles of break-in driving
• Chamfered and slotted pad edges minimize initial contact noise, prevent break-in squeal, and maintain consistent rotor contact throughout the pad's service life - important on a performance vehicle where brake noise is conspicuous
• Dual-layer high-temperature rubberized shims provide vibration damping between the pad backing plate and Brembo caliper pistons at all operating temperatures, contributing to virtually noise-free braking even under the hard braking inputs typical of GT500 driving
• Positive mold technology ensures consistent friction material density across the full pad face - producing stable torque output and even wear patterns from new through end of pad life on these high-powered, heavy vehicles
• Powder-coated backing plate resists corrosion and bracket seizure, particularly valuable in a rear Brembo application where pad removal requires more effort than a standard single-piston caliper setup
• Low-dust carbon-fiber ceramic formula keeps the GT500's distinctive red Brembo calipers and wheel interiors cleaner than stock brake compounds - an important aesthetic consideration on a vehicle where the brake system is highly visible through open-spoke wheels
• Premium stainless-steel hardware and high-temperature ceramic brake lubricant included - all components needed for a complete rear Brembo pad service are in the box

Specifications

• Series: Z26 Street Warrior (Extreme Street Performance)
• Position: Rear Axle
• Pad Compound: Carbon-Fiber Ceramic (high-performance, extreme street use)
• Caliper Type: Brembo 4-Piston Aluminum Monobloc (GT500/Mach 1 rear - standard equipment)
• Quantity: 1 Set (both rear pads; covers one axle)
• Hardware Included: Yes - stainless-steel hardware kit and pin bushings where applicable
• Brake Lubricant Included: Yes - high-temperature ceramic brake lubricant
• Warranty: 90 Days / 3,000 Miles (PowerStop individual pad/rotor component warranty)

Included Components

• 1x Rear Z26 Street Warrior Carbon-Fiber Ceramic Brake Pad Set (both pads, covers one axle)
• 1x Stainless-Steel Hardware Kit with pin bushings (where applicable)
• 1x High-Temperature Ceramic Brake Lubricant

Product Description

The PowerStop Z26-2363 is a rear Z26 Street Warrior carbon-fiber ceramic brake pad set engineered for the rear Brembo 4-piston caliper package fitted to the 2020-2022 Ford Mustang Shelby GT500 and 2021 Ford Mustang Mach 1. Both models use a unique rear Brembo aluminum monobloc caliper with staggered 30mm and 32mm pistons - a caliper configuration distinct from the standard S550 Mustang GT's rear setup - requiring a pad in the specific D-2363 backing plate shape. The Z26 Street Warrior is PowerStop's top-tier street pad compound, built from a carbon-fiber-reinforced ceramic formula that resists fade and maintains consistent friction output at the extreme braking temperatures generated by the GT500's 760 hp supercharged Predator V8. These are purpose-built for the driver who uses the full performance capability of these vehicles on the street and needs rear pads that match the commitment of the rest of the GT500's braking hardware.

These are rear pads only - no rotors are included. The thermally scorched surface, chamfered edges, slotted design, and dual-layer rubberized shims work together to produce quiet, properly-bedded braking from the first drive, with low dust output that keeps the GT500's signature red Brembo calipers and open-spoke wheels clean. For owners who also need front pad replacement, the GT500's front six-piston Brembo calipers (with 380mm/15-inch two-piece rotors) require a different PowerStop part number - the front and rear brake systems on these cars are entirely different caliper packages. The 2021 Mach 1 used the same rear Brembo caliper specification as the GT500, making the Z26-2363 the correct rear pad for both models.

The Shelby GT500 nameplate was produced for three model years - 2020, 2021, and 2022 - before the S550 Mustang platform was replaced by the 2024+ S650 generation. The 2021 Mach 1 was a one-year limited production model. Together, these two variants represent the pinnacle of the S550 Mustang's rear brake capability, and the Z26-2363 is the specific pad engineered to match it. PowerStop backs the Z26-2363 with a 90-Day / 3,000-Mile individual component warranty against defects in materials and workmanship.