Project Mu PHMR385 HC M1 Rear Brake Pads for 2017-2026 Honda Civic Type R

Vehicle Fitment

• 2017-2021 Honda Civic Type R (FK8), 2.0L I4 Turbocharged (K20C1), FWD
• 2022-2026 Honda Civic Type R (FL5), 2.0L I4 Turbocharged (K20C1), FWD
• 2025-2026 Honda Prelude (BF1), 2.0L I4 Hybrid, FWD

Fitment Notes

• Rear axle application only - see Project Mu PHMF506 or PHMF385 for matching front pads
• Designed for the factory OEM rear caliper on FK8 and FL5 chassis - not compatible with aftermarket calipers requiring a different pad shape
• Braking force is reduced immediately after installation until pads reach operating temperature - a proper bedding procedure is required before hard use
• Expect increased brake dust and noise compared to OEM or street-only compounds due to the semi-metallic HC M1 compound

Features

• HC M1 - flagship compound of the HC (Hyper Carbon) series, covering everything from city driving to spirited street and track use
• Super Graphite Metallic compound rated from 50°C to 800°C for consistent performance across a wide temperature range
• Friction coefficient of 0.41-0.55µ delivers linear, predictable pedal feel with exceptional stability at high temperatures
• Formulated with the lowest possible dust output among Project Mu graphite metal compounds while maintaining strong braking force
• Slotted pad design vents gases and pad residue from the friction surface to prevent fade during repeated hard stops
• Chamfered edges minimize brake squeal and high-frequency vibration
• Factory pre-heat treated - no extra hardening required; light bedding-in only needed to match pad to rotor
• High-grade steel backing plate, 20% stronger than OEM, to resist distortion under heavy caliper pressure

Specifications

• Part Number: PHMR385
• Compound: HC M1 (Hyper Carbon M1)
• Application: Rear Brakes
• Material: Super Graphite Metallic (Non-Asbestos)
• Operating Temperature Range: 50°C-800°C
• Friction Coefficient: 0.41-0.55µ
• Pad Shape: R385 (FK8 / FL5 OEM rear caliper)

Included Components

• 1x Set of Project Mu HC M1 Rear Brake Pads (per axle)

Product Description

The Project Mu PHMR385 is the flagship HC M1 compound rear brake pad, engineered for the factory rear calipers on the 2017-2021 Honda Civic Type R FK8 and 2022-2026 Civic Type R FL5. As the top model in Project Mu's HC (Hyper Carbon) series, HC M1 bridges the gap between aggressive street-sport pads and dedicated circuit compounds - providing linear pedal modulation from cold starts through sustained high-temperature use up to 800°C, while generating less dust than other graphite metallic options in the lineup.

The Super Graphite Metallic compound delivers a friction coefficient of 0.41-0.55µ with stable, consistent braking force through repeated hard stops. Slotted and chamfered pad geometry helps evacuate gases and suppress brake squeal during performance driving. The pre-heat-treated backing plate - 20% thicker than OEM steel - resists distortion under caliper pressure for long-term reliability. A thorough bedding-in procedure is recommended immediately after installation to match the pad surface to the rotor before full performance is realized.