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SKU: A1-203
GiroDisc Porsche 911 Carrera C4 T 2017-2019 991.2 350mm Slotted Front Rotors
GiroDisc slotted front rotors deliver direct replacement braking performance for 2017-2019 Porsche 911 Carrera Carrera 4 and Carrera T 991.2 models. These 350mm x 30mm two-piece rotors feature high carbon cast iron rings secured to lightweight 6061-T6 aluminum hats. Drivers experience reduced unsprung weight better heat management and consistent stopping power on track or street.
Key Features
- Two-Piece Construction: Aluminum hats and modular rotor rings allow easy replacement of wear surfaces while keeping total assembly weight low at 19.7 lbs per rotor versus OEM 28 lbs.
- Slotted Design: Precision slots clear gases and debris from pads for reliable bite under heavy loads and repeated hard stops.
- High Carbon 72 Series Iron: Cast iron rings resist warping and cracking with curved vane internal cooling that pulls heat away faster than solid rotors.
- Weight Savings: Pair weighs 39.4 lbs reducing rotational mass for sharper turn-in quicker acceleration and less suspension stress.
- OEM Bolt Pattern: 5x130mm PCD with 72.6mm center bore fits factory calipers and hubs without adapters or modifications.
Product Notes
- Inspect pads and hardware during install for full system refresh.
- Clean rotors with non-corrosive brake cleaner before bedding process.
- Pair ships fully assembled ready for direct bolt-on installation.
Installation Notes
- Professional installation recommended.
- Torque hub and caliper bolts to Porsche specs using thread locker.
- Compatible with OEM or aftermarket pads hardware and ABS sensors.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2019 | Porsche | 911 | Carrera |
| 2017-2019 | Porsche | 911 | Carrera 4 |
| 2018-2019 | Porsche | 911 | Carrera T |
Why Choose GiroDisc?
- Proven in endurance racing with teams trusting GiroDisc for high-heat durability.
- Hand-assembled in USA with tight tolerances for balance and longevity.
- Lifetime warranty covers aluminum hats against defects.
Frequently Asked Questions
-
Q: Will these rotors fit 991.2 Carrera S models?
A: No these 350mm rotors fit base Carrera C4 and T models with factory 350mm brakes. Carrera S uses 380mm rotors select A1-211 instead. -
Q: What material makes up the rotor rings?
A: High carbon 72 series ductile iron provides strength flexibility and fade resistance paired with black anodized aluminum hats. -
Q: What is the warranty and bedding process?
A: Lifetime warranty on hats 24 months on rings. Follow GiroDisc bedding procedure with 10-15 progressive stops from 60-10 mph.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed pair with protective wraps 36 x 14 x 14 inches
- Weight: 39.4 lbs
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