Brake disc. This part number supersedes to 9GT615301J Genuine Porsche part 9GT615301F

Brake disc rotor, Front.


Porsche 981 Cayman GT4 FRONT

Diameter 380 mm
Brake Disc Thickness 34 mm

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98135140

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Brake disc rotor, Front.

Brake Disc Diameter: 380 mm
Brake Disc Thickness: 34 mm


Porsche 981 Cayman GT4 FRONT

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Related, superseded, cross reference or alternative numbers for comparison.

98135140

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High grade brake disc.

Diameter: 380 mm
Brake Disc Thickness: 34 mm
Height: 69 mm
Rim Hole Number: 5 -Hole


Not for cars with ceramic brake (PCCB)
Porsche 982SP Boxster Spyder 2019>> FRONT
Porsche 981 Cayman GT4 2016 FRONT
Porsche 982 Cayman GT4 2019>> FRONT

Brake disc rotors are price each.

Please note: OE brake discs and brake pads are not stocked items and fall under special order terms.


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9GT61530

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Zimmermann FORMULA Z brake disc.

Vented, Perforated, Two-piece floating brake disc, Coated
Outer diameter: 380 mm
Brake Disc Thickness: 34 mm


Not for cars with ceramic brake (PCCB)
Porsche 982SP Boxster Spyder 2019>> - FRONT
Porsche 981 Cayman GT4 2016 - FRONT
Porsche 982 Cayman GT4 2019>> - FRONT

The Zimmermann Formula Z brake disc was designed with the aim of teaming simple installation with optimum braking effect under high mechanical and thermal load.
The compound brake disc developed by Zimmermann accommodates the increased demands incurred by engine tuning and optimised chassis structures.

Your advantages:
• Excellent deceleration action and no distortion of friction ring at high temperatures
• Substantial weight saving and therefore less unsprung mass
• Floating mounting enables radial expansion of the brake disc under relatively heavy loads, thus preventing shielding and increasing resistance to heat cracks
• „Hot spots" prevented by optimised design of ventilation channels
• 1:1 exchange of original disc possible
• Not subject to registration: general ABE certification supplied with disc
• No conversion required for brake tuning

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98135140

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Carbon ceramic replacement front brake disc set, (left and right)
Road and Track Use Only
Porsche Cayman GT4 and 991.2

The upgrade kit is designed for the easy replacement of standard iron front brake discs to Carbon Ceramic items keeping the original red calipers. Kit includes OE brake hoses

Only for 5 stud wheels



Fits
Porsche 991.2 Carrera 2 and Carrera 4
Porsche 991.2 Carrera 2S and Carrera 4S
Porsche 991.2 Carrera GTS
Porsche 991.2 turbo
Porsche 981 Cayman GT4
Porsche 718 Cayman GT4
Porsche 718 Cayman Spyder

Front disc size - 410mm x 36mm

Our material is a next-generation Carbon Fibre Reinforced Ceramic (CFRC) which is produced by Surface Transforms' proprietary processes, transforming Carbon-Carbon into our Carbon-Silicon Carbide (CSiC) ceramic.

Whilst the carbon-ceramic discs you find on production road cars conventionally use discontinuous (chopped) carbon fibre, ST interweaves continuous carbon fibre to form a 3D multi-directional matrix, producing a stronger and more durable product with 3x the heat conductivity of standard production components, this keeps the brake system temperature down and the brake performance consistent.

Surface Transforms has developed unique patented next-generation Carbon-Ceramic Technology that provides the ultimate braking performance for road and track.

Here's seven reasons why you need this technology on your vehicle:

• Weight savings of up to 70% compared to iron brakes (typically 20kg of unsprung weight)
• Improved handling and driveability
• Improved NVH (less noise, vibration and harshness)
• Improved performance (in both wet and dry conditions)
• Reduced brake wear – giving increased life
• Corrosion Free
• Outstanding performance, even from cold

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ST-K-1035

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Brake disc / rotor slotted 2-pc front. 

SET OF 2




Fits:
Porsche 991.2 GT2 RS Clubsport

Kit Contains:

Brake Disc complete with centre bell.

Brake Disc Type: 2-Piece Slotted

The Girodisc system is a direct replacement for the OE disc. No modifications are necessary, and it allows the use of unmodified factory pads. The disc will bolt directly to the car and work with factory calipers.

The central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in-house at Girodisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.

The rotor and hat have a floating mount system, which utilizes 12 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.

Once the Girodisc system is in place, simply replace the cast iron rotor when needed.

This product is a special order item, allow 5 - 7 working days for delivery.

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A1-250

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Brake disc rotor, Front. FORMULA Z. Porsche 992 GT3 (OE Part No 9GT615301B / 9GT615301B)

Zimmermann FORMULA Z brake disc.

Vented, drilled dimples, two-piece floating brake disc, Coated
Outer diameter: 408 mm
Brake Disc Thickness: 34 mm


Porsche 992 GT3 - FRONT
Steel Discs

The Zimmermann Formula Z brake disc was designed with the aim of teaming simple installation with optimum braking effect under high mechanical and thermal load.
The compound brake disc developed by Zimmermann accommodates the increased demands incurred by engine tuning and optimised chassis structures.

Your advantages:
• Excellent deceleration action and no distortion of friction ring at high temperatures
• Substantial weight saving and therefore less unsprung mass
• Floating mounting enables radial expansion of the brake disc under relatively heavy loads, thus preventing shielding and increasing resistance to heat cracks
• „Hot spots" prevented by optimised design of ventilation channels
• 1:1 exchange of original disc possible
• Not subject to registration: general ABE certification supplied with disc
• No conversion required for brake tuning

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

9GT61530

The product you are viewing cross references to these numbers