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Porsche // Cayenne 9YA.2 (E3 II) 2023>> // 9YA.2 Cayenne S V8 4.0L Petrol (474Hp) 2023>>
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- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII GT2 RS 2011-13
Brembo front Track Day brake disc set for Porsche 997.2 GT3, GT3 RS and GT2 RS applications. The set contains two 380 x 34mm two-piece slotted brake discs intended for demanding track use.
Fits
- Porsche 997 (911) MK2 2009–2012
- Porsche 997 MKII GT3 / GT3 RS 2010–11
- Porsche 997 MKII GT2 RS 2011–13
Not suitable as PCCB conversion 991G
Check fitment for your specific vehicle, including model, year, brake system and wheel or caliper clearance, before ordering.
What This Product Does
The two-piece construction separates the braking ring from the bell, helping the assembly manage repeated thermal cycles. Internal ventilation and a track-focused slot pattern support consistent contact between the disc and brake pad during circuit driving.
Functions
- Renews both front brake discs as a matched axle set
- Uses internal vanes to channel cooling air through each disc
- Provides slotted friction surfaces for pad contact and gas evacuation
- Directly replaces the relevant original disc assemblies
- Supports braking systems exposed to repeated high-temperature use
Technical Details
- Manufacturer: Brembo
- Reference: 103.9020E
- Contents: two front brake disc assemblies
- Disc dimensions: 380 x 34mm
- Construction: two-piece, internally ventilated and slotted
- Cooling design: 72 vanes with a reduced air gap
- Slot layout differs from the standard GT eight-slot pattern
- Supplied without a homologation fiche
- Diagram reference: 99735140991; grey cast-iron brake applications also reference 997.341.901.00
Symptoms of Fault
- Vibration or judder through the pedal or steering under braking
- Visible heat marks, surface cracking or excessive disc wear
- Reduced consistency after repeated heavy braking
- Squealing, scraping or other abnormal brake noise
- Uneven brake-pad wear or glazing
- A longer or inconsistent pedal after hard circuit use
Why Replacement Matters
Brake discs subjected to frequent track use can develop wear, heat damage or friction deposits that affect pedal consistency and pad contact. Replacing worn components helps restore correct braking-system operation. Inspect the pads, calipers, fluid and associated hardware at the same time, and follow the recommended bedding-in procedure after installation.
FAQs
- Does this set include both front discs?
Yes. It contains two brake disc assemblies for the front axle. - What fluid should be used for track driving?
Use brake fluid with a specification appropriate for the vehicle and intended operating temperatures. Replace aged fluid before demanding use. - Will these discs clear my wheels?
Confirm the existing caliper, wheel and brake-system specification before installation. - Should the brake pads be inspected?
Yes. Check pad condition, compound compatibility, wear pattern and remaining thickness when changing the discs. - Is bedding-in required?
Follow the disc and pad manufacturers’ bedding procedure to establish an even friction layer.
Additional Notes
This product is a special order item, allow 2-3 weeks for delivery.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
103.9012A
The product you are viewing cross references to these numbers
This high temperature brake fluid designed for the most extreme racing conditions.
It has a dry boiling point of 335° C which is around 25° C higher than a typical racing brake fluid. Developed exclusively for competition use, Brembo HTC 64T provides the highest performance under all racing conditions and has been used in F1, ALMS, DTM, WRC and BTCC.
Very high dry boiling point (335°C) / Wet boiling point 203°C
Ideal for competition vehicles which experience high brake temperatures
Successfully used in top level Motorsport including F1
For maximum performance it is recommended that Brembo HTC 64T is not mixed with other brake fluids.
500ml Bottle
Please Note
Must not be used in brake systems containing magnesium parts
Reliability and high quality
Brembo Racing | SPORT | EVO 500++ brake fluid is ideal in all conditions, fit for all, from everyday driving to non-professional intermediate use on the track.
This is a reliable high quality fluid that improves pedal feel and consistent braking performance without the frequent inspection intervals of a full racing brake fluid.
Formulated for real enthusiasts
- Suitable for use in braking systems designed for non-mineral fluids.
- Purposely designed to meet the expectations of enthusiasts who demand a lot from their system.
- Exceeds the requirements of specification U.S. FMVSS No.116 DOT 3 and DOT 4, SAE J1703, SAE J1704 and ISO 4925 (classes 3 and 4).
- Compatible with other DOT 3, DOT 4 and DOT 5.1 brake fluids, as long as they comply with the above specification.
For safety reasons, it is recommended to replace your brake fluid at least once a year. Not Suitable for vehicles with mineral oil systems. Colour range: appearance from transparent to amber. In the case of new brake fluid, when poured out from the sealed bottle, the colour may differ from the range, but the performance remains the same.