GiroDisc Porsche 718 GTS 4.0, 981 Spyder Rear Rotors, Spacers & Bolts
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Porsche 718 GTS 4.0, 981 Spyder Rear Rotors, Spacers & Bolts

GiroDisc
GIRA2-049B
A2-049B
Brake Rotors - Slotted
1 Units In Stock - Ships Next Business Day
$ 1,350.00
$ 1,350.00

SKU: A2-049B

GiroDisc Porsche 981 Boxster Spyder 718 GTS 4.0 GT4 Slotted Rear Rotors

GiroDisc slotted rear rotors deliver track-proven braking for Porsche 981 Boxster Spyder and 718 Cayman GT4 Spyder GTS 4.0 models. This 2-piece design uses curved vanes to pump cooling air through the disc for consistent performance under heat. Sold in pairs with floating mount for noise-free operation and self-centering action.

Key Features

  • 6061-T6 Aluminum Hat: U.S.-sourced aircraft-grade aluminum central hat reduces unsprung weight while resisting corrosion.
  • Proprietary Cast Iron Disc: Poured and fully machined in the USA for exact tolerances and high-friction surface that resists warping.
  • Curved Vane Design: Racing-developed vanes act as centrifugal pumps to force air through the disc brakes for rapid heat dissipation.
  • Floating Mount System: 10 high-strength cadmium-plated alloy steel drive pins handle braking torque with axial and radial float for smooth operation.
  • Anti-Noise Spring Washers: Secure pins eliminate cold rattle allow thermal expansion and ensure the rotor self-centers between pads.

Product Notes

  • Sold and priced in pairs for left and right rear installation.
  • Use 991 Carrera S 4S GTS rear pad shape for full rotor sweep contact.
  • Box dimensions 15.3 x 14.7 x 6.8 inches shipping weight 43.5 lbs.

Installation Notes

  • Professional installation recommended.
  • Pair with 991 Carrera S 4S GTS rear pads for complete sweep pattern.
  • Floating system uses class 12.9 cap screws and hardened washers included.

This Part Fits

Year Make Model Submodel
2016 Porsche Boxster Spyder
2016 Porsche Cayman GT4
2019-2022 Porsche 718 Cayman GT4
2020-2022 Porsche 718 Cayman GTS 4.0
2019-2022 Porsche 718 Spyder Base
2020-2022 Porsche 718 Spyder GTS 4.0
2022-2023 Porsche 718 Cayman GT4 RS
2023 Porsche 718 Spyder RS

Why Choose GiroDisc?

  • Proven in racing with direct replacement simplicity for worn rotors.
  • All components manufactured in USA from hat to pins for precise fit.
  • Engineering focuses on cooling and float to maintain pad contact under load.

Frequently Asked Questions

  • Q: Which pads work best with these rotors?
    A: 991 Carrera S 4S GTS rear pad shape ensures full sweep across the slotted surface for optimal bite and even wear.
  • Q: What materials are used in construction?
    A: Hat from 6061-T6 aircraft aluminum discs from proprietary USA cast iron pins cadmium-plated alloy steel all machined in-house.
  • Q: How does the floating design benefit daily driving?
    A: Pins with anti-noise springs prevent rattle when cold allow expansion when hot and self-center rotor for quiet consistent braking.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Secure box 15.3 x 14.7 x 6.8 inches
  • Weight: 43.5 lbs

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