Girodisc Ford Shelby GT350 Front Rings

Maintain peak braking performance in your GT350 or GT350R with Girodisc D1-162 394mm front replacement rings. These high-performance rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Machined from Girodisc’s proprietary high-carbon cast iron, they deliver superior heat dissipation, reduced unsprung weight, and consistent braking power under the extreme temperatures of track use.
Vehicle Fitment
Compatible with:
• Ford Mustang Shelby GT350 (2016–2020)
• Ford Mustang Shelby GT350R (2016–2020)
Note: Designed exclusively for Girodisc 394mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit
• Direct replacements for Girodisc 394mm two-piece front rotors
• CNC-machined from high-carbon cast iron for maximum strength and heat resistance
• Directional curved vanes increase airflow and cooling
• Maintains OEM brake bias and ABS calibration
• Precision-balanced to eliminate vibration and ensure smooth braking
• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 394 mm
• Position: Front
• Material: High-carbon cast iron
• Mount type: Floating two-piece system
• Includes: Two rotor rings and full hardware kit
• Sold/priced per pair
Girodisc D1-162 Ford Shelby GT350 Front Replacement Ring FAQs
Do these work with OEM GT350 hats? No. The Girodisc D1-162 rings are designed to bolt only to Girodisc aluminum hats. OEM one-piece or carbon-ceramic systems are not compatible.
What pad compounds pair best with these rotors? For mixed street/track driving, Ferodo DS2500 or Hawk HPS 5.0 are excellent choices. For full track use, Girodisc recommends Pagid RSL 1 or Carbotech XP12 compounds.
What torque should I use for the hardware bolts? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite, and recheck after the first full heat cycle.
Are these rotors directional? Yes. Each rotor is marked for left and right use. Installing them correctly ensures proper airflow through the curved cooling vanes for maximum heat dissipation.
Upgrade your GT350’s braking confidence with Girodisc D1-162 394mm front replacement rings — engineered for precision, strength, and endurance on street or circuit.