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Vehicle Fitment
Listed fitment: Porsche 911 and Cayman 997, 996, 996.1, 996.2, 997.1, 997.2, and 987.
If you are unsure which Girodisc rotor fits your brake package, contact us before ordering.
GiroDisc GP40-0991.18 Porsche 911 / Cayman / Boxster Front GP40 Sprint Race Brake Pads
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GiroDisc GP40-0991.18 front sprint race pads cover the listed Porsche 996 and 997 GT3, GT2 and Turbo brake arrangements, the 997 GT3 Cup and specific PCCB-to-iron conversions. Each application retains its own caliper, pad-shape and disc requirements in the table below.
GP40 is GiroDisc's sprint race compound, intended for circuit driving. Its character combines braking bite and pedal feedback with consideration for disc wear. Choose the compound as part of the complete braking setup, taking the car's use and fitted discs into account.
Key Features
- Exact GiroDisc reference: GP40-0991.18.
- Front fitment includes the specifically listed 997 GT3 Cup and 996/997 road-car brakes.
- GiroDisc GP40 sprint race compound.
- Balances braking bite, pedal feedback and consideration for disc wear.
Vehicle Fitment and Brake Setup
| Vehicle | Axle | Model years | Required brake setup |
|---|---|---|---|
| Porsche 911 Carrera, all (997) | Front | with PCCB, uses GT3/Turbo shapes; iron-disc conversion application | |
| Porsche 911 GT3 Cup (997) | Front | Match the specified vehicle and installed brake system. | |
| Porsche 911 GT3 (996.1) | Front | Front/rear 350/350mm with spacers & hardware | |
| Porsche 911 GT3 (996.2) | Front | Rear 350mm with spacers & hardware | |
| Porsche 911 GT3/GT2 (996) | Front | with PCCB, uses GT3/Turbo iron shapes | |
| Porsche 911 GT3/GT2 (997.1) | Front | without PCCB | |
| Porsche 911 GT3/GT2 (997.2) | Front | without PCCB | |
| Porsche 911 GT3/GT2 (997) | Front | with PCCB; iron-disc conversion application | |
| Porsche 911 Turbo (996) | Front | with PCCB; iron-disc conversion application | |
| Porsche 911 Turbo (997) | Front | excluding PCCB | |
| Porsche 911 Turbo (997) | Front | with PCCB; iron-disc conversion application | |
| Porsche Cayman S/R (987) | Front | with PCCB; iron-disc conversion application |
Brake compatibility: The applications offered here use the specified iron-disc brake arrangements. Where a car was originally equipped with PCCB, the corresponding iron-disc conversion is required. Match the installed caliper, disc and pad shape to the relevant application row before ordering. Preserve any specified GT3/Turbo front pad shape, enlarged-disc mounting requirements and the distinction between GT3 Cup and road-car applications.
The brake setup notes identify the complete vehicle configuration. Disc dimensions, caliper spacers or mounting hardware mentioned in an application are not additional items included with these pads or shields.
Product Specifications
| Part number | GP40-0991.18 |
| Brand | GiroDisc |
| Product type | Brake Pads |
| Axle | Front |
| Compound | GP40 |
| Pad shape | 0991.18 |
Recommended Supporting Upgrades
Compatible disc configurations include A1-019 iron disc assembly, A1-019A iron disc assembly, A1-032 iron disc assembly, subject to the exact brake option in the fitment table.
Explore GiroDisc Porsche brakes and the complete GiroDisc range for supporting brake components.
Installation and Care
Have the pad profile, retaining hardware and disc condition checked before installation. Follow the brake pad manufacturer's bedding procedure with compatible discs, and inspect the calipers as part of the same brake service.
Contact us to confirm availability and lead time before ordering.
Product specifications
- Brand
- Girodisc
- Product type
- Brake Pads
- Part number / SKU
- GP40-0991.18
- Vehicle make
- Porsche
- Vehicle model
- 911 and Cayman
- Vehicle variant
- 997, 996, 996.1, 996.2, 997.1, 997.2, and 987
Girodisc fitment can vary by factory brake package, disc diameter and caliper. Contact us with your registration or VIN and brake specification if you are unsure.
Warranty: Products are supplied with the applicable manufacturer warranty.
Shipping: We offer UK and worldwide shipping. Supplier-stock delivery estimates are shown above.
Returns: Special-order items may be subject to different cancellation/return conditions.
Klarna payment options are available at checkout where eligible.
Why buy from us?
Vehicle Fitment
Listed fitment: Porsche 911 and Cayman 997, 996, 996.1, 996.2, 997.1, 997.2, and 987.
If you are unsure which Girodisc rotor fits your brake package, contact us before ordering.
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