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Porsche > 991 (911) MK2 2016-2019 > 991.2 Speedster 4.0L (510Bhp) 2019 > Brakes >

SPORTS Brake Disc

SPORTS Brake Disc

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DISPLAYING 1 to 4 (of 4 products)
Brake Disc / Rotor Slotted 2-pc REAR 981 GT4 w/PCCB - A2-156
1
Brake Disc / Rotor Slotted 2-pc REAR 981 GT4 w/PCCB
A2-156S
Product Information
Product Information
Brake Disc / Rotor Slotted 2-pc REAR

girodisc

rear
Fits:
REAR rotor: 390mm Direct Replacement
Porsche 981 Cayman GT4 with Ceramic brake (PCCB)
Porsche 718 Cayman GT4 with Ceramic brake (PCCB)
Porsche 991 with Ceramic brake (PCCB)
Porsche 991.2 with Ceramic brake (PCCB)

Kit Contains:
Brake Disc 390MM complete with centre bell.

Brake Disc Type: 2-Piece Slotted

The Girodisc brake rotor is a direct replacement for the OE discs, and provides significant performance benefits. The rotors are compatible with any of the current pads typically used with these cars.

Additional information:

Braking Performance: The rotor is a two-piece design developed in racing to produce a lightweight rotor that can compensate for the different expansion rates between the hat and rotor and eliminate the possibility of rotor warping.

The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, which allows for axial and radial float.

More heat sink without a weight penalty: The Girodisc disc set weights in a little lighter than the OE system but with an important advantage. The rotors have grown in diameter. This means that weight has been transferred from the center hat were it does nothing to the outer diameter where it is actively absorbing and dispersing heat.

High Quality Materials: The Girodisc system uses only the highest quality materials and components. The rotors are high carbon content iron for long wear and stable thermal performance. The top hat section is machined from billet aluminum with an attractive anodized finish. 

This product is a special order item, allow 5 - 7 working days for delivery.
DesignTek Rear Brake Pads For Carbon Ceramic Brake Discs. Porsche 982 / 991 / 992 / 918 / 981 - 91835294604 - CBL99069
1
DesignTek Rear Brake Pads For Carbon Ceramic Brake Discs. Porsche 982 / 991 / 992 / 918 / 981
36040099069
Product Information
Product Information
DesignTek Rear Brake Pads For Carbon Ceramic Brake Discs. Porsche 982 / 991 / 992 / 918 / 981.

DesignTek Carbon Ceramic Rear Brake Pads are engineered specifically for use with carbon ceramic brake discs, delivering consistent, fade-resistant braking performance for both high-performance road driving and track use.

Unlike conventional brake pads designed for iron discs, these pads use a carbon-ceramic-compatible friction compound that operates effectively across a wide temperature range without damaging the disc surface. The result is strong, progressive braking feel, excellent modulation, and stable performance under repeated heavy braking.

Ideal for drivers seeking a refined street braking experience with the durability and performance required for spirited or track-focused driving, DesignTek brake pads offer a reliable OE-replacement solution for Porsche carbon ceramic braking systems.

Fits:
Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
Porsche 991.1 R 4.0L (500 Bhp) 2016
Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
Porsche 991.2 Speedster 4.0L (510Bhp) 2019
Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
Porsche Cayman GT4 3.8L 2015-16
Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Porsche 918 Spyder 4.6L   

Key Features:
  • Specifically formulated for carbon ceramic brake discs
  • Suitable for street and track use
  • Excellent fade resistance at elevated temperatures
  • Consistent friction characteristics across the full operating range
  • Progressive pedal feel and strong initial bite
  • Low dust output compared to conventional iron-disc pads
  • Designed for use with OE and compatible aftermarket calipers
  • Both Street and Race Pads are ECE R90 E11 Certified, ensuring no compliance issues


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

36040099069
91835294604

The product you are viewing cross references to these numbers
Replacement Slotted Brake Disc (390mm) for Rear Axle - Cars With PCCB & Existing GiroDisc Hats. Porsche 981 / 718 / 991 - A2-154SL, A2-154SR, A2-156SL, A2-156SR
1
Replacement Slotted Brake Disc (390mm) for Rear Axle - Cars With PCCB & Existing GiroDisc Hats. Porsche 981 / 718 / 991
D2-154S
Product Information
Product Information
Rear replacement brake disc (390mm) - slotted - for cars with PCCB and existing GiroDisc hats.

Includes replacement hardware; the only parts you will reuse are your existing GiroDisc hats.

girodisc

rear
Porsche 981 Cayman GT4 / RS 2016 - w/ PCCB.
--
Porsche 718 (982) Cayman GT4 / RS 2019>> - w/ PCCB.
Porsche 718 (982) Boxster Spyder / RS 2019>> - w/ PCCB.
--
Porsche 991.2 Carrera / S / 4 / 4S / GTS / T 2017-19 - w/ PCCB.
Porsche 991 Turbo / Turbo S / GT2 RS 2014-20 - w/ PCCB.
Porsche 991 GT3 / GT3 RS 2014-21 - w/ PCCB.
--
Porsche 992.1 Carrera S / 4S / GTS 2019-24 - w/ PCCB.
Porsche 992 GT3 / GT3 RS 2021>> - w/ PCCB.

NOTE: This listing is for replacement discs specifically designed for vehicles already equipped with GiroDisc's two-piece rotor system. Please note that this product cannot be used as a standalone upgrade.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

D2-154S
A2-154SL
A2-154SR
A2-156SL
A2-156SR

The product you are viewing cross references to these numbers
Replacement Slotted Brake Disc (410mm) for Front Axle - Cars With PCCB & Existing GiroDisc Hats. Porsche 981 / 718 / 991 - A1-154SL, A1-154SR, A1-156SL, A1-156SR
1
Replacement Slotted Brake Disc (410mm) for Front Axle - Cars With PCCB & Existing GiroDisc Hats. Porsche 981 / 718 / 991
D1-154S
Product Information
Product Information
Front replacement brake disc (410mm) - slotted - for cars with PCCB and existing GiroDisc hats.

Includes replacement hardware; the only parts you will reuse are your existing GiroDisc hats.

girodisc

front
Porsche 981 Cayman GT4 / RS 2016 - w/ PCCB.
--
Porsche 718 (982) Cayman GT4 / RS 2019>> - w/ PCCB.
Porsche 718 (982) Boxster Spyder / RS 2019>> - w/ PCCB.
--
Porsche 991.2 Carrera / S / 4 / 4S / GTS / T 2017-19 - w/ PCCB.
Porsche 991 Turbo / Turbo S / GT2 RS 2014-20 - w/ PCCB.
Porsche 991 GT3 / GT3 RS 2014-21 - w/ PCCB.
--
Porsche 992.1 Carrera S / 4S / GTS 2019-24 - w/ PCCB.
Porsche 992 GT3 / GT3 RS 2021>> - w/ PCCB.

NOTE: This listing is for replacement discs specifically designed for vehicles already equipped with GiroDisc's two-piece rotor system. Please note that this product cannot be used as a standalone upgrade.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

D1-154S
A1-154SL
A1-154SR
A1-156SL
A1-156SR

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
About SPORTS Brake Disc

Experience race-inspired stopping power with Porsche sports brake discs from Design911. Designed for performance driving, these upgraded brake rotors provide greater heat dissipation, improved bite, and enhanced fade resistance, ensuring confidence under even the most demanding conditions.

What They Are & What They Do
Sports brake discs (or rotors) are precision-engineered components that work with brake pads to generate friction and stop the car effectively. Unlike standard discs, sports variants are often drilled, grooved, or slotted, helping to vent heat and gases, improve braking response, and maintain consistent performance during high-speed or repeated stops.

Why They Fail
Over time, brake discs wear down from heat cycles, friction, and corrosion. Common signs of failure include scoring, warping, cracking, or vibration during braking. Track use or aggressive driving can accelerate wear, while low-quality discs may develop hotspots and fade under stress.

Why They Should Be Replaced
Replacing worn or damaged brake discs restores optimal braking efficiency, pedal feel, and vehicle control. New sports discs not only improve performance and safety but also extend pad life and reduce fade, ensuring Porsche’s legendary stopping precision. Design911 offers genuine Porsche discs for factory performance and aftermarket upgrades for enhanced durability and responsiveness.

Whether you’re restoring a classic 911 or tuning a Cayman or Taycan for track use, our range of sports discs combines precision, reliability, and performance to keep your Porsche braking like new.

Aftermarket Performance Brake Discs
High-quality aftermarket discs featuring slotted or drilled designs for superior airflow, reduced fade, and consistent friction performance.

Front Sports Brake Discs
Heavy-duty front rotors built to handle intense braking loads, offering maximum stopping power and stability under pressure.

Rear Sports Brake Discs
Rear discs designed for balanced braking and improved heat management, ensuring control and composure under repeated deceleration.

Drilled & Grooved Brake Rotors
Advanced rotors engineered to dissipate heat, clean brake pads, and deliver responsive braking for track and fast-road applications.

Motorsport & Track Brake Discs
Race-grade rotors made from high-carbon or composite materials, offering unmatched durability and thermal control for competition use.

Porsche Brake Disc Upgrades: Venting, Drilling, and Grooving Explained

Today we’re talking brake discs: the unsung heroes of your Porsche’s stopping power. What do they do? How can you tell when they need replacing? And what are the upgrade options for enhanced performance? It’s all here. We’ll explore the evolution of brake disc designs, from solid to vented, drilled, and grooved, explaining how each type improves performance. Plus, we’ll break down the materials: durable cast iron, high-carbon steel, and Porsche’s high-performance options like carbon ceramic and surface-coated discs. Whether you’re looking for better braking on the track or a cost-effective daily driving solution, we’ve got you covered.
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