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Brembo GT Upgrade Kit Porsche Rear axle 390x32 slotted TY3L – 20D0988A

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Brembo GT Upgrade Kit for the rear axle of Porsche vehicles – two-piece floating brake discs Ø 390 x 32 mm, slotted TY3L. Ideal for converting factory PCCB to Brembo cast iron discs.

Part number: 20D0988A
Alternative number: 20.D098.8A
Scope of delivery: left + right brake disc incl. mounting hardware
Fits: 982 718 Cayman GT4 RS, 982 718 Spyder RS, 991 911 Speedster, 991 911 R and more

✅ Original calipers are retained – only the discs are replaced.
✅ Includes UBB certificate and comparison report for registration (Germany).
⚠️ Brake pads not included – please request a separate quote.

Reference 20D0988A

€2,790.00

Tax included Delivery within 10-14 days

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Description
Product Details

Brembo GT Upgrade Kit Porsche Rear axle – Ø 390 x 32 mm slotted TY3L, two-piece

The Brembo GT Upgrade Kit 20D0988A (alternative number 20.D098.8A) contains the left and right two-piece brake disc Ø 390 x 32 mm for the rear axle. It is part of the official Brembo GT Upgrade Program for Porsche: most applications are conversions of cars with factory ceramic brakes (PCCB) to Brembo cast iron discs. The original calipers stay on the car – only the brake discs are replaced.

A high-carbon cast iron friction ring is floating-mounted to a hat machined from billet aluminium. The ring can expand radially when hot, stays flat and does not warp – even under repeated hard braking on track.

Compatible Vehicles

Porsche 982 718 Cayman GT4 RS (with PCCB) – 2022–2025
Porsche 982 718 Spyder RS (with PCCB) – 2024–2025
Porsche 991 911 Speedster (with PCCB) – 2019
Porsche 991 911 R (with PCCB) – 2016
Porsche 991 GT2 RS (with PCCB) – 2019
Porsche 991 GT3, GT3 RS, GT3 Touring (with PCCB) – 2014–2019
Porsche 992.1 911 S/T (with PCCB) – 2024
Porsche 992.1 GT3 RS (with PCCB) – 2023–2025
Porsche 992.1 GT3, GT3 Touring (with PCCB) – 2021–2024
Porsche 992.2 GT3 S/C (with PCCB) – from 2026
Porsche 992.2 GT3, GT3 Touring (with PCCB) – from 2025

See all applications in our Brembo GT Upgrade application list.

Why Convert from PCCB to Brembo?

Much lower running costs: PCCB discs usually cost several times as much. With Brembo, only the friction ring is replaced when worn.
Ideal for track days: Spare your expensive ceramic brakes – many drivers keep their PCCB discs and use Brembo on track.
Wide choice of brake pads: street, sport and race pads for cast iron discs.
Consistent, easy-to-modulate pedal feel – even at high temperatures.

Technical Data

Part number: 20D0988A
Alternative number: 20.D098.8A
Axle: rear axle
Outer diameter: Ø 390 mm
Disc thickness: 32 mm
Minimum thickness: 30 mm
Design: two-piece, floating, internally vented
Rotation: directional (left/right)
Surface: slotted TY3L (street legal)
Compatibility: ABS and traction control

Scope of Delivery & Ordering Note

Scope of delivery: 2x Brembo brake disc (left + right) for the rear axle, packed separately, incl. mounting hardware for vehicle-specific installation.

Calipers: The original calipers are retained.

Brake pads: not included. When changing discs, the brake pads must also be replaced – please request a separate quote.

Registration & Installation

Every order includes a UBB certificate (Unbedenklichkeitsbescheinigung) and a comparison report (Vergleichsgutachten) based on your vehicle's VIN – please provide your VIN with your order. With these documents the system can be registered in Germany at any testing organisation (e.g. TÜV, DEKRA, GTÜ). On request, we install and register the system in our workshop in Münster, Germany.

Frequently Asked Questions

Is this a set or a single disc?
A set: left and right brake disc for the rear axle.

Are the original calipers retained?
Yes. Only the brake discs are replaced.

Are brake pads included?
No. The pads must also be replaced when changing discs – ask us for a separate quote.

Can the upgrade be registered?
Yes. With the supplied UBB certificate and comparison report at any testing organisation in Germany – or with us in Münster on request.

Drilled or slotted TY3L?
Drilled discs respond quickly, even in the wet. The TY3L is the slotted street-legal version with the Brembo logo on the braking surface. Learn more: Brembo GT rotor types compared.