Hawk HB665B.577 HPS 5.0 Rear Brake Pads for 2005-2025 Porsche 911/Boxster

Vehicle Fitment

• 2005-2025 Porsche 911 (Carrera/Carrera S/C4), 2005-2025 Porsche Boxster (987/981/718), 2008-2025 Porsche Cayman (987/981/718) - Rear, iron/metal brake rotors only

Features

• High-performance HPS 5.0 ferro-carbon compound for aggressive torque
• Optimized for rear-specific brake balance in ABS-equipped cars
• Smooth initial bite with predictable release characteristics
• Wide operating range (100-750 °F), ideal for street and light track
• Low noise and minimal brake dust for street use
• Gentle on iron/metal rotors, reduces wear
• Consistent high deceleration performance
• Manufactured in USA with limited lifetime warranty

Specifications

• Pad thickness: 0.577" (14.66 mm)
• FMSI shape: D1134-8245
• Material: Ferro-carbon HPS 5.0 compound
• Operating temperature: 100-750 °F (optimal 100-550 °F)
• Weight: approx. 3.4 lb per axle set
• Caliper: OEM Porsche rear calipers
• Brake dust: low to moderate
• Emissions/legal: street-legal, not for carbon-ceramic rotors

Included Components

• 2x rear friction pads (0.577" thickness)
• 1x hardware kit (shims, clips, anti-squeal grease)
• 1x bed-in & installation instruction sheet

Product Description

The Hawk HB665B.577 HPS 5.0 rear brake pads are purpose-built for Porsche 911, Boxster, and Cayman models from 2005 through the 2025 model year. Featuring a high-performance ferro-carbon compound, these pads deliver aggressive torque and improved stopping power - 20-40% better than OEM - while maintaining low noise, minimal dust, and rotor-friendly operation. Ideal for drivers seeking street performance with occasional track use.

Designed for direct-fit installation into OEM rear calipers, the HB665B.577 pads ensure a smooth initial bite and predictable release, thanks to carefully optimized compound tuning. They offer consistent performance across a wide temperature range and include full hardware and bed-in instructions. Street-legal and backed by Hawk's limited lifetime warranty, these pads are a reliable choice for Porsche enthusiasts - but note: they are not compatible with carbon-ceramic rotors.