GiroDisc A1-154 Slotted Front Brake Rotors - Porsche 911 GT3 / GT3 RS / GT2 RS (991) with PCCB, Iron Rotor Pad Shape

These are GiroDisc slotted front brake rotors, part number A1-154, for the Porsche 911 GT3, GT3 RS and GT2 RS on the 991 chassis equipped with PCCB, using the iron rotor pad shape.

Specifications

• Position: Front axle
• Rotor face: Slotted
• Application: Porsche 911 GT3, GT3 RS and GT2 RS (991) with PCCB
• Pad shape: Iron rotor pad shape
• Manufacturer part number: A1-154

These are iron discs sized for cars originally fitted with Porsche Ceramic Composite Brakes, so the matching iron rotor pad shape is required. The slotted face sweeps gas and pad debris away from the contact patch to keep bite consistent as brake temperature builds.

Fitment

Specific to 991 chassis GT3, GT3 RS and GT2 RS cars with PCCB. Confirm your model, brake package, and pad shape before ordering.

Rotors should be replaced in pairs across an axle so both sides wear evenly and the car brakes straight under hard use. Fitting fresh pads at the same time is recommended so the pad and disc bed in together, and a proper bedding procedure should be run before the car sees track duty.

Shipping and returns

Free shipping on orders over $75. 30-day returns on unused parts in original packaging.