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SPORTS Brake Disc
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
Vented, Perforated, Two-piece floating brake disc, Coated
Outer diameter: 322 mm
Brake Disc Thickness: 32 mm
Bolt Hole Circle Ø: 130 mm
Centering Diameter: 103 mm

Porsche 911 (993) Turbo / Turbo Look 1994-98 - 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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99335104
The product you are viewing cross references to these numbers
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.-
Brake Pads & Disc Package
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Brake Disc Standard
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Brake Pads Standard
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Brembo Standard brakes
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Brembo Racing brakes
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TEXTAR Brakes
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PAGID Racing Brakes
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Zimmermann Brakes
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Performance Friction Brakes
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Giro Slotted Brake Disc
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SHW Performance Brakes
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EBC Brakes
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Black Diamond Performance Brakes
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Brake Pad Wear Sensors
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Brake Pad Anti-vibration shims
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Caliper Bolts / Disc Screws
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Pin Kit and Guide Plates
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Performance Brake Hoses
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Handbrake Shoes
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HandBrake Cables
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ABS | Speed Sensors
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DesignTek Brake Kits
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed