GiroDisc A1-031 Slotted 2-Piece Front Brake Rotors for 1997-2012 Porsche 911

Vehicle Fitment

• 1997-2005 Porsche 911 996 Carrera 2 (3.4L H6, RWD)
• 1997-2005 Porsche 911 996 Carrera 4 (3.4L H6, AWD)
• 2005-2008 Porsche 911 997.1 Carrera 2 (3.6L H6, RWD)
• 2005-2008 Porsche 911 997.1 Carrera 4 (3.6L H6, AWD)
• 1997-2004 Porsche Boxster S (3.2L H6, RWD)
• 2005-2012 Porsche Boxster S (3.2L-3.4L H6, RWD)
• 2006-2012 Porsche Cayman S (3.4L H6, RWD)

Features

• Direct replacement for OEM 317mm front rotors
• Two-piece design with lightweight aluminum hats
• Slotted rotor surface for improved heat dissipation
• Maintains factory brake bias and ABS functionality
• Reduces unsprung weight for enhanced handling
• Manufactured in the USA using high-quality materials
• Compatible with OEM calipers; no modifications required
• Ideal for both street and track applications

Specifications

• Diameter: 340mm
• Thickness: 28mm (outer) / 26mm (inner)
• Material: Cast iron disc with 6061-T6 aluminum hat
• Weight Savings: Approximately 5.6 lbs per rotor compared to OEM
• Rotor Style: Slotted
• Coating: Non-coated
• Rotor Treatment: Non-Cryo Treated
• Rotor Design: Curved vane for enhanced cooling

Included Components

• 1x Left Front Rotor
• 1x Right Front Rotor
• 2x Caliper Spacers
• All necessary hardware for installation

Product Description

The GiroDisc A1-031 2-piece slotted front brake rotors are engineered to provide superior performance over stock components. Designed as direct replacements for the factory 317mm rotors on select Porsche models, these rotors feature a lightweight aluminum hat and a slotted cast iron disc, reducing unsprung weight and enhancing thermal management.

With a diameter of 340mm and a thickness of 28mm (outer) / 26mm (inner), these rotors maintain the OEM brake bias and ABS functionality, ensuring seamless integration with the factory braking system. The curved vane design acts as a centrifugal pump, directing cool air across the rotor surface to improve cooling efficiency during high-performance driving.

Ideal for both street and track applications, the GiroDisc A1-031 rotors offer a significant upgrade over stock components, providing improved braking performance, reduced weight, and enhanced durability.