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HPX Compound Front Pads Built for the C8 Z51's Brembo Front Axle
When the 2020 and 2021 Chevrolet Corvette C8 Z51 is driven to its limits on a road course, the front brake system carries the bulk of the deceleration load. Hawk Performance part HB926C.577 places the HPX motorsports compound on that front axle, pairing clean modulation with smooth initial bite in the 100 to 600 degree F range where autocross and club racing events typically operate. HB926C.577 is a direct-fit replacement for the factory Brembo front caliper hardware on the Z51 and carries Hawk Performance's limited lifetime warranty. This compound is not street-rated.
Key Features
- HPX compound code "C" engineered for autocross and road course braking profiles
- Optimal temperature range: 100 to 600 degrees F; operating ceiling: 700 degrees F
- Smooth, predictable initial bite that supports precise ABS and traction system interaction
- Direct replacement for front Brembo pads on HB926C.577-compatible 2020-2021 C8 Z51
- Dynamometer-validated friction characteristics under Hawk Performance's race engineering program
- Not compatible with carbon ceramic rotors; iron and steel rotor use only
- Motorsports-use configuration no shims included in the HB926C.577 set
- Hawk Performance limited lifetime warranty
What's Included
- One set of Hawk HPX front brake pads (HB926C.577) for the 2020-2021 Chevrolet Corvette C8 Z51
Installation Instructions
- Secure the vehicle on jackstands and remove front wheels.
- Remove the front caliper slide pin bolts and pivot the caliper free of the rotor without hanging it by the brake line.
- Remove the old pads and clean the abutment clips and carrier contact surfaces.
- Press the caliper pistons back using a C-clamp or piston press tool before seating HB926C.577 pads.
- Install the new HPX pads in the carrier, confirm secure seating, reinstall the caliper, and torque slide pins to OEM specification.
- Reinstall wheels and pump the brake pedal until a firm pedal is achieved.
- Bed in HB926C.577 on track before full-load braking: six to ten moderate decelerations from 60 mph to 15 mph followed by cool-down laps, then two to three hard stops.
Specs
| Attribute | Detail |
|---|---|
| Part Number (MPN) | HB926C.577 |
| SKU | HAWKHB926C.577 |
| UPC | 840653057880 |
| Compound | HPX (Code C) |
| Position | Front |
| Pad Thickness | 0.577 in |
| Optimal Temp Range | 100 to 600 degrees F |
| Max Operating Temp | 700 degrees F |
| Torque Level | Low |
| Street Legal | No motorsports use only |
| Shims Included | No |
| Rotor Compatibility | Iron / steel rotors only |
| Warranty | Limited lifetime (Hawk Performance) |
This Part Fits
| Year | Make | Model | Submodel / Notes |
|---|---|---|---|
| 2020 | Chevrolet | Corvette C8 | Z51 Package Front |
| 2021 | Chevrolet | Corvette C8 | Z51 Package Front |
Frequently Asked Questions
Is HB926C.577 the correct front pad for all 2020-2021 C8 Corvettes?
No. HB926C.577 is specific to C8 models equipped with the Z51 performance package and its factory Brembo front calipers. Base C8 models without Z51 use a different caliper and require a separate part number.
Can I pair HB926C.577 front pads with a different compound on the rear?
Hawk recommends using the matched HB927C.568 rear pads to maintain balanced brake torque distribution front-to-rear on the C8 Z51.
What is the operating temperature ceiling for the HPX compound in HB926C.577?
The compound is validated up to 700 degrees F maximum, with the optimal working window between 100 and 600 degrees F, ideal for autocross and club-race duty cycles.
Do I need a piston wind-back tool for the front calipers on the C8 Z51?
The front calipers on the C8 Z51 use conventional push pistons and can be retracted with a standard C-clamp or piston compressor, unlike the rear calipers which require a wind-back tool due to the integrated parking brake mechanism.
Will HB926C.577 cause premature rotor wear compared to OEM pads?
HPX is a relatively low-torque motorsports compound and is not aggressive on rotor material within its intended temperature range, but rotor wear rates are always higher in track versus street use regardless of compound.
Is HB926C.577 compatible with the Magnetic Ride Control suspension system on the C8?
Pad selection does not interact with the suspension system. HB926C.577 installs in the brake caliper only and has no impact on Magnetic Ride Control operation.
Does Hawk offer a bedding procedure guide for HB926C.577?
Yes. Hawk Performance publishes a bed-in guide on their website covering the thermal cycling sequence required before full-load use of HPX compound pads.
Are electronic wear sensors included with HB926C.577?
No. HPX motorsports pads do not include electronic wear sensors. Pad thickness should be checked visually before every track session.
Proposition 65 Warning: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
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