Girodisc 350x34 Front Brake Discs for Porsche 911 (997) Carrera (2004–2012) – 911 (991.1) Carrera (2002+) with CCB

Girodisc A1-032 front brake discs (350 × 34 mm) enhance braking endurance during sustained use on Porsche 911 (997) Carrera models with carbon-ceramic rotors (2004–2012), Porsche 911 (991.1) Carrera with carbon-ceramic brake disks (2002+), Porsche 911 (991.2) Carrera S, 4S, and GTS (2002+), Porsche 911 (992.2) Carrera, C4, and T (2002+), Porsche 911 (992.1) Carrera S and 4S (2002+), Porsche 911 (996) turbo with carbon-ceramic rotors (2003–2005), Porsche 911 (997) turbo (2006–2012), Porsche Cayman (987) S and R with carbon-ceramic rotors (2007–2013), Porsche Boxster (981) Spyder with carbon-ceramic rotors (2012–2016), Porsche Cayman (981) and Boxster S and GTS with carbon-ceramic rotors (2012–2016), Porsche 718 (982) Cayman and Boxster S and GTS with carbon-ceramic rotors (2016+), Porsche 718 (982) Cayman and Boxster GTS 4.0 (2016+), Porsche 718 (982) Cayman and Boxster GTS 4.0 with carbon-ceramic rotors (2016+). Their cast-iron tracks and aluminum bowls form a floating assembly designed to handle thermal stresses and facilitate replacement of tracks subjected to wear. Sold in pairs, with one left and one right disc.

These rotors are intended for the front axle of compatible vehicles in the configuration listed below. They retain the compatible caliper mounting; any required spacers and brake pad specifications must be observed.

The curved internal cooling fins channel air through the rotor to dissipate heat during repeated braking. The floating mounting minimizes stresses caused by thermal expansion differences between the rotor and the housing and helps the rotor center itself between the brake pads, maintaining consistent contact under heat.

The hub is made of 6061-T6 aluminum. The high-strength steel drive pins are cadmium-trimmed to resist corrosion. They are secured by Class 12.9 bolts and hardened washers. Spring washers minimize cold-mounting noise while allowing the necessary compression for the floating mount.

New pads must be installed with new rotors or brake tracks. Their shape and compound must match the mounting, cast iron, and intended use; adhere to the specific requirements of this part number and perform the prescribed break-in procedure.

On compatible vehicles originally equipped with carbon-ceramic rotors, this pair provides a conversion solution to high-quality cast-iron rotors. It allows you to remove and store the expensive original carbon-ceramic rotors to preserve them during heavy-duty use, while reusing compatible calipers. Use new brake pads suitable for cast iron and adhere to the pad shapes and any spacers specified by the part number. Replaceable brake pads reduce the cost of replacing braking surfaces in heavy-duty applications and offer a choice of brake linings to tailor bite and pedal reaction to the intended use.

Specifications for Girodisc A1-032 rotors for compatible vehicles

• Brand: Girodisc
• PartNumber: A1-032
• Position: front
• Sizes (diameter × thickness): 350 × 34 mm
• Vehicles and models: Porsche 911 (997) Carrera with carbon-ceramic rotors (2004–2012); Porsche 911 (991.1) Carrera with carbon-ceramic rotors (2002+); Porsche 911 (991.2) Carrera S, 4S, and GTS (2002+); Porsche 911 (992.2) Carrera, C4, and T (2002+); Porsche 911 (992.1) Carrera S and 4S (2002+); Porsche 911 (996) Turbo with carbon-ceramic brake rotors (2003–2005); Porsche 911 (997) Turbo (2006–2012); Porsche Cayman (987) S and R with carbon-ceramic brake rotors (2007–2013); Porsche Boxster (981) Spyder with carbon-ceramic rotors (2012–2016); Porsche Cayman (981) and Boxster S and GTS with carbon-ceramic rotors (2012–2016); Porsche 718 (982) Cayman and Boxster S and GTS with carbon-ceramic rotors (2016+); Porsche 718 (982) Cayman and Boxster GTS 4.0 (2016+); Porsche 718 (982) Cayman and Boxster GTS 4.0 with carbon-ceramic rotors (2016+)
• Braking surface: high-resistance cast steel
• Packaging: pair of complete rotors, one left and one right with disc bells.
• Housing: 6061-T6 aluminum
• Construction: two-piece floating mounting design
• Catalog part number: D1-032. Verify compatibility with the caliper generation before replacement.
• Internal ventilation: directional curved fins
• Minimum thickness: 32 mm
• Overall height: 70 mm
• Original rotor diameter: 330 mm
• Manufacturing of main components: United States

Vehicles compatible with Girodisc part number A1-032

• Porsche 911 (997) Carrera with carbon-ceramic rotors (2004–2012)
• Porsche 911 (991.1) Carrera with carbon-ceramic rotors (2002+)
• Porsche 911 (991.2) Carrera S, 4S, and GTS (2002+)
• Porsche 911 (992.2) Carrera, C4, and T (2002+)
• Porsche 911 (992.1) Carrera S and 4S (2002+)
• Porsche 911 (996) turbo with carbon-ceramic brake rotors (2003–2005)
• Porsche 911 (997) turbo (2006–2012)
• Porsche Cayman (987) S and R with carbon-ceramic rotors (2007–2013)
• Porsche Boxster (981) Spyder with carbon-ceramic rotors (2012–2016)
• Porsche Cayman (981) and Boxster S and GTS with carbon-ceramic rotors (2012–2016)
• Porsche 718 (982) Cayman and Boxster S and GTS with carbon-ceramic brake rotors (2016+)
• Porsche 718 (982) Cayman and Boxster GTS 4.0 (2016+)
• Porsche 718 (982) Cayman and Boxster GTS 4.0 with carbon-ceramic rotors (2016+)

• Porsche 911 (997) Carrera with carbon-ceramic rotors (2004–2012): For factory PCCB brakes; use the appropriate GT3/Turbo pad shapes.
• Porsche 911 (991.1) Carrera with carbon-ceramic rotors (2002+): For factory PCCB; use D1741-shaped front pads and 991 S rear pads.
• Porsche 911 (991.2) Carrera S, 4S, and GTS (2002+): Rear mounting in 350 mm with spacers and fasteners.
• Porsche 911 (992.2) Carrera, C4, and T (2002+): Without PCCB.
• Porsche 911 (992.1) Carrera S and 4S (2002+): Without PCCB.
• Porsche 911 (996) turbo with carbon-ceramic rotors (2003–2005): For vehicles equipped with factory-installed PCCB rotors.
• Porsche 911 (997) turbo (2006–2012): Without PCCB.
• Porsche Cayman (987) S and R with carbon-ceramic rotors (2007–2013): For vehicles equipped with factory-installed PCCB rotors.
• Porsche Boxster (981) Spyder with carbon-ceramic rotors (2012–2016): For vehicles equipped with factory-installed PCCB rotors.
• Porsche Cayman (981) and Boxster S and GTS with carbon-ceramic rotors (2012–2016): For vehicles equipped with factory-installed PCCB rotors.
• Porsche 718 (982) Cayman and Boxster S and GTS with carbon-ceramic rotors (2016+): For vehicles equipped with factory PCCB rotors.
• Porsche 718 (982) Cayman and Boxster GTS 4.0 (2016+): 350 mm rear mounting; use 991 S brake pads to cover the entire track.
• Porsche 718 (982) Cayman and Boxster GTS 4.0 with carbon-ceramic rotors (2016+): For vehicles equipped with factory-installed PCCB rotors.

Each application is subject to its specific brake system configuration, calipers, and any requirements for brake pads or spacers. Please verify these conditions before ordering.

Girodisc A1-032 Mounting Requirements

• Porsche 911 (997) Carrera with carbon-ceramic rotors (2004–2012): For factory PCCB braking system; use the appropriate GT3/Turbo brake pad shapes.
• Porsche 911 (991.1) Carrera with carbon-ceramic rotors (2002+): For factory PCCB; use D1741-shaped front pads and 991 S rear pads.
• Porsche 911 (991.2) Carrera S, 4S, and GTS (2002+): 350 mm rear mounting with spacers and fasteners.
• Porsche 911 (992.2) Carrera, C4, and T (2002+): Without PCCB.
• Porsche 911 (992.1) Carrera S and 4S (2002+): Without PCCB.
• Porsche 911 (996) turbo with carbon-ceramic rotors (2003–2005): For vehicles equipped with factory-installed PCCB rotors.
• Porsche 911 (997) turbo (2006–2012): Without PCCB.
• Porsche Cayman (987) S and R with carbon-ceramic rotors (2007–2013): For vehicles equipped with factory-installed PCCB rotors.
• Porsche Boxster (981) Spyder with carbon-ceramic rotors (2012–2016): For vehicles equipped with factory-installed PCCB rotors.
• Porsche Cayman (981) and Boxster S and GTS with carbon-ceramic rotors (2012–2016): For vehicles equipped with factory-installed PCCB rotors.
• Porsche 718 (982) Cayman and Boxster S and GTS with carbon-ceramic rotors (2016+): For vehicles equipped with factory PCCB rotors.
• Porsche 718 (982) Cayman and Boxster GTS 4.0 (2016+): 350 mm rear mounting; use 991 S brake pads to cover the entire track.
• Porsche 718 (982) Cayman and Boxster GTS 4.0 with carbon-ceramic rotors (2016+): For vehicles equipped with factory-installed PCCB rotors.

Brake Pads and Brake Systems for Compatible Vehicles

Choose brake pads whose shape is compatible with the calipers and the A1-032 track, and whose compound is suitable for sport driving or track use. The Endless, pagid Racing, or Ferodo Racing ranges may be considered after verifying the appropriate part number.

For intensive use, we recommend compatible aviation-grade flexible hoses and high-performance brake fluid that meets the vehicle’s specifications, along with proper bleeding and fluid replacement. This recommendation complements the mounting, which is compatible with the original hydraulic system.

Maintenance of the Girodisc mounting on compatible vehicles

Replacing the pads alone helps keep the rotors in good condition. Reusing a rotor for up to three pad replacements is subject to inspection of its condition, its mounting components, and the mounting instructions; this number does not constitute a guaranteed service life. Use a new mounting component with each pad replacement.

FAQ — Girodisc A1-032 for compatible vehicles

What are the sizes of the A1-032 discs for my vehicle? The part number shown measures 350 × 34 mm and is mounted on the front axle. The diameter alone is not sufficient: also check the brake system type and mounting requirements.

Is the product sold in pairs? Yes. It includes a left and a right disc for the same axle. Both discs come with their disc bells.

Do I need to replace my vehicle’s brake pads?Yes. Always install new brake pads with new rotors or new braking surfaces. Their shape and compound must be compatible with the A1-032 track and the calipers. Then break in the rotors and pads according to the prescribed procedures.

How do I identify the left and right sides? Girodisc rotors come with a label attached to each rotor: LEFT for the left side and RIGHT for the right side, as viewed in the direction of travel. On a left-hand-drive vehicle, “LEFT” corresponds to the driver’s side and “RIGHT” to the passenger side. Follow these labels and the instructions. On models with curved internal fins, the rolling direction depends on this internal ventilation; the surface grooves alone are not sufficient to determine the side.

How do I break in this mounting on my vehicle? Follow the Girodisc procedure and the brake pad manufacturer’s instructions to build up an even transfer ply. The PDF documents below detail installation and break-in.

PDF Documents for Mounting and Break-in

We have included two PDF documents below: an instruction manual for installing and breaking in the discs, and an instruction manual for installing new tracks on existing bowls. Consult the document that applies to your specific task before you begin.

Key Features of the Girodisc A1-032

• 350 × 34 mm size for front braking on compatible vehicles.
• 6061-T6 aluminum rotor and floating mount to manage thermal stresses.
• Internal ventilation via curved fins to dissipate heat.
• Replaceable pads to maintain a two-piece mounting.
• Left/right pair identified for mounting.
• Aluminum rotors to control the unsprung mass and rotating mass of the conversion kit.