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Vehicle Fitment
Listed fitment: Porsche 911, Cayman, and Boxster 991, 991.2, 992, 992.2, 992.1, 981, and 982.
If you are unsure which Girodisc rotor fits your brake package, contact us before ordering.
GiroDisc GP30-1740.18 Porsche 911 / Cayman / Boxster Rear GP30 Endurance Race Brake Pads
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GiroDisc GP30-1740.18 is the rear endurance race pad reference for the listed Porsche 991, 992, GT4 and Spyder brake systems. Its mechanical fitment follows the specific rear caliper and disc configuration, including the conversion conditions attached to individual models in the application table.
GP30 is GiroDisc's endurance race compound. Select it as part of a complete brake setup, using the exact pad reference and application details below. Compound choice and mechanical pad fitment need to be checked separately when preparing a car for circuit use.
Key Features
- Exact GiroDisc reference: GP30-1740.18.
- Rear fitment for the exact 991, 992, GT4 and Spyder applications listed.
- GiroDisc GP30 endurance race compound.
- Specify the full brake arrangement alongside the pad reference.
Vehicle Fitment and Brake Setup
| Vehicle | Axle | Model years | Required brake setup |
|---|---|---|---|
| Porsche 911 Carrera, all (991.2) | Rear | with PCCB, front uses iron rotor pad shape | |
| Porsche 911 Carrera S/4S (992.2) | Rear | without PCCB, use 1741 GT3 front pad shape | |
| Porsche 911 Carrera GTS (992) | Rear | without PCCB, use 1741 GT3 front pad shape | |
| Porsche 911 Carrera S/4S/GTS (992.1) | Rear | with PCCB, front uses iron rotor pad shape | |
| Porsche 911 GT3/GT3 RS (991) | Rear | without PCCB | |
| Porsche 911 GT3/GT3 RS/GT2 RS (991) | Rear | with PCCB, front uses iron rotor pad shape | |
| Porsche 911 GT3 (992) | Rear | without PCCB | |
| Porsche 911 GT3 RS (992) | Rear | Front 36mm thick, without PCCB | |
| Porsche 911 GT3, GT3 RS (992) | Rear | with PCCB; iron-disc conversion application | |
| Porsche 911 Turbo/Turbo S (991) | Rear | excluding PCCB | |
| Porsche 911 Turbo/Turbo S (991) | Rear | with PCCB, front uses iron rotor pad shape | |
| Porsche 911 Turbo (992) | Rear | excluding PCCB, use 1741 GT3 front pad shape | |
| Porsche Cayman GT4 (981) | Rear | excluding PCCB | |
| Porsche Cayman GT4 (981) | Rear | with PCCB, front uses iron rotor pad shape | |
| Porsche 718 Cayman GT4, Boxster Spyder (982) | Rear | excluding PCCB | |
| Porsche 718 Cayman GT4, Boxster Spyder (982) | Rear | with PCCB, front uses iron rotor pad shape | |
| Porsche 718 Cayman GT4 RS (982) | Rear | excluding PCCB | |
| Porsche 718 Cayman GT4 RS (982) | Rear | with PCCB, front uses iron rotor pad shape | |
| Porsche 718 Spyder RS (982) | Rear | excluding PCCB | |
| Porsche 718 Spyder RS (982) | Rear | with PCCB, front uses iron rotor pad shape |
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. Notes identifying a different front pad shape apply to that axle; the rear brake arrangement must still match this reference.
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 | GP30-1740.18 |
| Brand | GiroDisc |
| Product type | Brake Pads |
| Axle | Rear |
| Compound | GP30 |
| Pad shape | 1740.18 |
Recommended Supporting Upgrades
Compatible disc configurations include A2-146 iron disc assembly, A2-154 iron disc assembly, A2-155 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 images may be illustrative. Use the part number and specifications to confirm the item required.
Product specifications
- Brand
- Girodisc
- Product type
- Brake Pads
- Part number / SKU
- GP30-1740.18
- Vehicle make
- Porsche
- Vehicle model
- 911, Cayman, and Boxster
- Vehicle variant
- 991, 991.2, 992, 992.2, 992.1, 981, and 982
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, Cayman, and Boxster 991, 991.2, 992, 992.2, 992.1, 981, and 982.
If you are unsure which Girodisc rotor fits your brake package, contact us before ordering.
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