Project Mu HC+ Brake Pads (REAR)

2023+ Toyota GR Corolla

PHR004

Overview:

The Project Mu HC+ Brake Pads are engineered specifically for the rear brakes of the 2023 and newer Toyota GR Corolla. Designed for drivers who demand consistent, high-performance braking under a wide range of conditions, these pads deliver excellent control and reliability. Whether on spirited street driving or track days, the HC+ pads maintain strong stopping power and pedal feel, making them an ideal upgrade for enthusiasts seeking enhanced braking performance without sacrificing everyday usability.

Sold in pairs, these brake pads utilize advanced materials and design features to ensure stable braking force, even under intense heat and repeated heavy use. Their compatibility with the GR Corolla’s rear braking system ensures a direct fit and optimized performance.

Key Features:

Project Mu’s HC+ Brake Pads incorporate several innovative technologies to maximize braking efficiency and durability:

• Super Graphite Metallic Material: Provides a friction coefficient ranging from 0.43 to 0.58, ensuring strong and consistent braking performance across rotor temperatures from 0 to 800°C.
• Gas and Dust Removal Slits: Central slits in the pad surface efficiently discharge gases and pad residue generated by high-temperature friction, reducing brake fade and maintaining stable braking force.
• Chamfered Edges: The pad corners are chamfer-cut to minimize unpleasant brake squeal caused by pad-to-rotor contact, improving overall noise comfort.
• Pre-Heat Treated: Pads are factory pre-quenched to burn off unnecessary materials, suppressing gas generation during initial use and allowing for a straightforward break-in process.
• Reinforced Backplate: Constructed from steel plates 20% stronger than standard, the backplate resists warping under piston pressure, preventing friction material peeling and enhancing safety.

Construction & Design:

The HC+ pads feature a super graphite metallic friction material formulated to deliver a balanced blend of performance and durability. This material excels in heat resistance and friction stability, making it suitable for both street and light track use. The inclusion of gas discharge slits addresses the common brake fade issue by allowing heat and gases to escape, preserving pad-to-rotor contact.

Project Mu’s attention to detail extends to the pad backing plate, which is engineered from a high-strength steel alloy to prevent distortion under heavy braking loads. This robust construction ensures the pads maintain their shape and integrity over time, reducing the risk of brake failure and extending service life.

Performance & Sound

These brake pads are designed to deliver reliable stopping power with minimal noise. The chamfered edges reduce brake squeal typically caused by sharp pad corners, while the pre-heat treatment minimizes gas buildup that can lead to fade and inconsistent pedal feel. Although brake noise can occasionally occur due to factors like rotor aging, dust, or environmental conditions, the HC+ pads are optimized to suppress unwanted sounds as much as possible.

Installation & Fitment:

The Project Mu HC+ Brake Pads are a direct fit replacement for the rear brakes of the 2023+ Toyota GR Corolla. Installation requires no modifications, allowing for a straightforward upgrade using standard brake service procedures. As with all brake pad replacements, proper bedding-in is recommended to achieve optimal performance and longevity.

What's Included:

• Two (2) Project Mu HC+ Rear Brake Pads

Ideal For:

• Enthusiasts seeking enhanced rear braking performance for the Toyota GR Corolla 2023+
• Drivers who require consistent brake feel and control across a wide temperature range
• Street and occasional track use where fade resistance and noise reduction are important
• Owners looking for a reliable, durable brake pad upgrade with direct fitment

Project Mu is a manufacturer specializing in high-performance braking components, including brake pads, rotors, stainless steel braided lines, and fluids. Their products are designed for a range of applications, from street driving to motorsports, offering consistent friction characteristics and reliable fitment across various vehicle platforms.