D1-007 Girodisc Subaru WRX STI ('04–'17) Front Replacement Rings
Bring back the precise braking performance of your Subaru WRX STI with Girodisc D1-007 front replacement rings. Designed as direct replacements for Girodisc two-piece rotors, these high-carbon cast iron rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. The result is factory-level fitment with race-bred thermal control, fade resistance, and improved pedal consistency during aggressive driving.
Vehicle Fitment
Compatible with:
• Subaru WRX STI (2004–2017, all trims including Limited and Type RA)
Note: These rings are designed exclusively for Girodisc two-piece front rotors and are not compatible with OEM or other aftermarket one-piece designs.
Features
• Direct replacements for Girodisc 2-piece STI front rotors
• Sold as a matched left/right pair with complete floating hardware kit
• High-carbon cast iron construction for superior heat control
• Directional curved vanes increase airflow and cooling efficiency
• Precision-balanced for smooth, vibration-free operation
• Retains factory brake bias and ABS calibration
• Machined and assembled in the USA
• Sold/priced per pair
Specifications
• Diameter: 326 mm (application dependent)
• Position: Front
• Material: High-carbon cast iron
• Mount Type: Floating two-piece system
• Includes: Two rotor rings and complete hardware kit
• Sold/priced per pair
Girodisc D1-007 Subaru WRX STI ('04–'17) Front Replacement Ring FAQs
Can these be used with factory STI rotor hats? No. These are designed exclusively for Girodisc aluminum hats and won’t fit OEM one-piece rotors.
Are they suitable for both street and track use? Yes. Girodisc rotors are engineered to handle the heat of track sessions while maintaining quiet, smooth operation for daily driving.
Do these rings come with new hardware? Yes. Each pair includes a complete floating hardware kit with drive pins, bolts, and washers for proper installation.
Which brake pads are recommended? For street performance, use Ferodo DS2500. For track use, Pagid RS29 or Carbotech XP10 deliver consistent high-temperature braking.
Upgrade your WRX STI’s braking capability with Girodisc D1-007 front replacement rings — the ideal balance of precision, cooling, and endurance for both street and circuit performance.
