Girodisc Rear Brake Rotors 325x24 for Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002)

The Girodisc D2-033 rear replacement brake pads in 325 × 24 mm allow you to replace the brake pads on your GIRODISC cup-style rotors for your Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002) while retaining the compatible rotors after inspection. These cast-iron pads maintain the floating assembly’s functionality and facilitate maintenance of a braking system subjected to repeated stress. Sold in pairs, without rotors.

The curved internal cooling fins channel air through the disc to dissipate heat during repeated braking. The floating assembly limits stresses caused by thermal expansion differences between the brake pad surface and the rotor and helps the pad surface center itself between the brake pads, maintaining consistent contact even when hot.

New brake pads must be installed with new rotors or brake discs. Their shape and compound must match the installation, cast iron type, and intended use; follow the specific requirements for this part number and perform the prescribed break-in procedure.

Specifications for Girodisc D2-033 rotors for compatible vehicles

• Brand: Girodisc
• Part Number: D2-033
• Position: rear
• Dimensions (diameter × thickness): 325 × 24 mm
• Vehicles and models: Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002)
• Brake rotor material: high-strength cast steel
• Packaging: pair of rotors, one left and one right; brake calipers not included.
• Compatible rotors: rotors from the corresponding Girodisc kit; check by part number; not universally compatible with OEM rotors.
• Mounting hardware: mounting kit included; replace the entire rotor-to-hub mounting assembly during reassembly.
• Related catalog part: A2-033.
• Internal ventilation: directional curved fins
• Minimum thickness: 22 mm
• Original disc diameter: 298 mm
• Manufacturing of main components: United States

Vehicles compatible with Girodisc part number D2-033

• Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002)

• Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002): Front/rear installation in 340/325 mm with spacers and hardware.
• Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002): The existing setup must retain the appropriate caliper spacers.

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

Girodisc D2-033 Installation Requirements

• Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002): Front/rear installation in 340/325 mm with spacers and hardware.
• Porsche 911 (996 and 997.1) Carrera and C4 (1997–2002): The existing setup must retain the appropriate caliper spacers.

Brake pads and braking systems for compatible vehicles

Choose brake pads whose shape is compatible with the calipers, the track, and/or the D2-033 rotor, and whose compound is suitable for spirited driving or track use. The Endless, Pagid Racing, or Ferodo Racing lines may be considered after verifying the appropriate part number.

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

Maintenance of the Girodisc system on compatible vehicles

When worn, replace the pads with the part number compatible with your existing rotors. Reusing a rotor for up to three pad replacements is subject to inspection of its condition, its fasteners, and the installation instructions; this number does not constitute a guaranteed service life. Use a new mounting bracket each time you replace the tracks.

FAQ — Girodisc D2-033 for compatible vehicles

What are the dimensions of the D2-033 tracks for my vehicle? The part number shown measures 325 × 24 mm and is mounted on the rear axle. The height of the track, the mounting bracket, and the brake shoes must also be compatible with the installation.

Is the product sold in pairs? Yes. It includes a left and a right component for the same axle. Brake shoes are not included.

Do I need to replace my vehicle’s brake pads?Yes. Always install new brake pads with new rotors or new brake tracks. Use a compound suitable for cast iron and your intended use. The existing setup must retain the appropriate caliper spacers.

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 direction of rotation depends on this internal ventilation; the surface grooves alone are not sufficient to determine the side.

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

PDF Documents for Installation 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 rotors. Consult the document that applies to your specific task before you begin.

Key features of the Girodisc D2-033 replacement tracks

• 325 × 24 mm size for rear braking on compatible vehicles.
• Internal ventilation via curved fins to dissipate heat.
• Replaceable tracks to maintain a two-part assembly.
• Left/right pair identified for installation.
• Compatible aluminum bowls are retained to maintain the benefits of the two-part assembly on unsprung and rotating masses.