Girodisc Porsche 997 GT3 Front Rings
Maintain your Porsche’s legendary braking precision with Girodisc D1-127 380mm front replacement rings. Designed as direct replacements for Girodisc’s two-piece systems, these high-performance rings bolt to your existing aluminum hats using the included floating hardware kit. Each rotor is machined from Girodisc’s proprietary high-carbon cast iron for superior heat management, consistent friction, and fade-free performance in both street and track environments.
Vehicle Fitment
Compatible with:
• Porsche 997 GT3 (2006–2011)
• Porsche 997 GT3 RS (2007–2011)
• Porsche 997.2 GT3 and GT3 RS (380mm front rotors)
Note: Designed for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM PCCB carbon-ceramic rotors or one-piece iron discs.
Features
• Sold as a left/right pair with complete floating hardware kit
• Direct replacements for Girodisc 380mm two-piece front rotors
• CNC-machined from high-carbon iron alloy for maximum thermal stability
• Directional curved vanes optimize airflow and cooling efficiency
• Maintains factory brake bias, ABS, and PSM calibration
• Precision-balanced to eliminate vibration and ensure smooth operation
• Designed exclusively for Girodisc aluminum hats used in GT3 applications
Specifications
• Diameter: 380 mm
• Position: Front
• Material: High-carbon cast iron
• Mount type: Floating two-piece system
• Includes: Two rotor rings and new hardware kit
• Sold/priced per pair
Girodisc D1-127 Porsche 997 GT3 Front Ring FAQs
Will these fit the OEM Porsche GT3 rotor hats? No. These replacement rings are designed specifically for Girodisc aluminum hats and are not compatible with OEM one-piece or PCCB setups.
Which brake pads perform best with these rotors? For spirited road use, Ferodo DS2500 or Hawk HPS pads work well. For track and racing use, Pagid RS29 or Endless ME20 offer high-temp stability and consistent bite.
What torque should I apply to the hardware bolts? Torque to 12 ft-lbs (16 Nm) using blue Loctite. Recheck after the first full heat cycle to ensure even seating and proper float.
Are these rotors directional? Yes. Each rotor is marked for left or right installation, ensuring the internal vanes pull air through the disc to maximize cooling under sustained braking.
Refresh your GT3’s braking system with Girodisc D1-127 380mm front replacement rings — engineered for durability, precision, and race-proven performance lap after lap.
