GiroDisc GiroDisc Porsche 911 Carrera/C4/T (991.2) 350mm Slotted Front Rotors
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GiroDisc Porsche 911 Carrera/C4/T (991.2) 350mm Slotted Front Rotors

GiroDisc
GIRA1-203
A1-203
Brake Rotors - 2 Piece
2 Units In Stock - Ships Next Business Day
$ 1,350.00
$ 1,350.00

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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