SKU: A1-307
GiroDisc 2020+ Toyota GR Supra 3.0L Front Slotted Rotors
GiroDisc A1-307 front slotted rotors provide a direct OEM replacement for 2020+ Toyota GR Supra 3.0L models. The two-piece construction with aluminum hats reduces pair weight to 36.8 lbs from OEM 64.6 lbs for less unsprung mass and quicker response. Slotted surfaces clear gases and water to maintain strong stops in all conditions.
Key Features
- Two-Piece Design: 6061-T6 aircraft-grade forged aluminum hats with black anodization pair with 4340 heat-treated steel rotors for 27.8 lbs weight savings per pair and thermal expansion tolerance.
- Slotted Rotor Surface: Slots on both sides improve cooling by expelling brake gases and debris while enhancing wet-weather grip and initial bite.
- Forged Steel Rotors: 4340 alloy is stress-relieved, cryogenically treated, and double-disc ground for resistance to warping and cracking under high heat.
- Precise Dimensions: 395mm OD x 36mm thick x 85mm height with 5×112 lug pattern, 72.6mm center bore, and 66.1mm pilot for exact fit.
- Stainless Hardware: Included floating hardware ensures smooth operation and easy maintenance without galling.
Product Notes
- Sold as a pair for left and right front installation.
- Follow GiroDisc bedding procedure for optimal performance and longevity.
- Oversized item requires freight or ground shipping.
Installation Notes
- Professional installation recommended.
- Bolt-on replacement using OEM calipers and hardware.
- Torque hardware to manufacturer specs during assembly.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2025 | Toyota | GR Supra | 3.0 |
| 2020-2025 | Toyota | GR Supra | 3.0 Premium |
Why Choose GiroDisc?
- 20+ years engineering high-performance rotors for road and track use.
- Proven in GT racing with teams demanding reliable stopping power.
- USA-made with tight tolerances for consistent bedding and performance.
Frequently Asked Questions
- Q: Will these rotors fit both automatic and manual 2020+ GR Supra 3.0L models?
A: Yes, A1-307 rotors are direct replacements for all 2020-2025 Toyota GR Supra 3.0L variants regardless of transmission. - Q: What materials are used in construction?
A: Rotors are 4340 forged steel with cryogenic treatment. hats are 6061-T6 aluminum. hardware is stainless steel. - Q: What is the warranty coverage?
A: Limited lifetime warranty against rotor cracking when installed and bedded per GiroDisc guidelines.
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Securely boxed pair with protective wrapping, approx 20 x 18 x 12 inches
- Weight: 36.8 lbs





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