Brembo UPGRADE GT 2-Piece Drilled Front Discs for 99x Porsche 911 Carrera, C4, C4 GTS, C4S, GTS, S, T / Turbo

The Brembo UPGRADE GT 2-Piece Drilled Front Discs provide a significant performance enhancement for select 996, 997, 991.2, and 992 Porsche 911 models by replacing the factory one-piece rotors with a lightweight, track-proven two-piece design. Each rotor features a high-carbon iron outer disc mated to a precision-machined aluminum hat via a floating D-bobbin system with anti-rattle springs — improving heat dissipation, reducing unsprung weight, and allowing for greater thermal stability under repeated hard braking. The drilled, curved vane vented design enhances cooling efficiency and initial bite, while the corrosion-resistant plating ensures long-term durability. Engineered as a direct OE replacement, these 330mm x 34mm discs are fully compatible with factory calipers and retain full street drivability while offering track-day performance for drivers seeking sharper response and improved pad wear control — without the compromises of a full racing setup.

Drilled Disc (D)

• These two-piece floating brake rotors feature precision-drilled holes that lower unsprung mass and quickly release heat under load. The result is a visually striking design paired with powerful, consistent braking performance in all driving conditions.

UPGRADE GT Systems

• Brembo’s UPGRADE GT Systems deliver a complete, vehicle‑specific braking solution engineered to work seamlessly with the factory master cylinder and ABS for unmatched balance, performance, and safety. Each kit is designed by Brembo for optimal hydraulic compatibility and braking distribution, ensuring confident pedal feel and consistent stopping power in both street and track environments. Offering a significant step above OE performance, UPGRADE GT Systems provide improved heat management, fade resistance, and durability without compromising everyday drivability.

Features

• Two‑piece drilled front discs
• Lightweight aluminum bell (hat) coupled with high‑carbon iron outer disc
• Enhanced heat dissipation and gas/particle evacuation
• Improved cooling airflow
• Corrosion‑resistant plating on the outer disc surface
• Low noise and allows thermal expansion
• Direct OEM replacement — compatible with factory calipers and installation points
• Designed for street and track use
• Sold as a pair (2 front discs)

Specifications

• Disc Size: 330mm x 34mm
• Disc Construction: 2-piece
• Disc Type: Drilled
• Disc Vane Design: Vented curved vane
• Disc Material: Advanced high carbon alloy / Corrosion resistant plating
• Disc PCD: 5-130
• Disc to Hat Mounting: Floating D-Bobbin with Anti Rattle Spring
• Axle: Front

Applications

• Porsche 911 Carrera: 991.2, 992.1 (2015-2024)
• Porsche 911 Carrera 4: 991.2, 992.1 (2015-2024)
• Porsche 911 Carrera 4 GTS: 997.2 (2011-2013)
• Porsche 911 Carrera 4S: 996, 997.1, 997.2 (2002-2013)
• Porsche 911 Carrera GTS: 997.2 (2011-2013)
• Porsche 911 Carrera S: 997.1, 997.2 (2005-2013)
• Porsche 911 Carrera T: 991.2, 992.1 (2017-2019, 2022-2024)
• Porsche 911 Turbo: 996 (2001-2005)

Notes

• Sold as 2 front discs
• This system consists of 2-Piece disc assemblies which directly replace the OEM discs
• These discs are not compatible with the following vehicles equipped with PCCB (porsche ceramic composite brakes):
  • Carrera GTS
  • Carrera 4 GTS
  • Carrera T
  • Turbo

About Brembo

Brembo is a global leader in high-performance braking systems, renowned for its innovation, engineering excellence, and track-proven technology. Founded in Italy in 1961, the company has become synonymous with advanced brake components for automotive, motorcycle, and motorsport applications. Supplying major OEMs and dominating professional racing circuits worldwide, Brembo combines cutting-edge research, precision manufacturing, and a relentless commitment to safety and performance. From Formula 1 to the street, Brembo continues to set the benchmark in braking technology, trusted by enthusiasts and manufacturers alike.