SKU: D1-153
GiroDisc Porsche 911 Carrera (997.2) 2009-2012 Slotted Front Rings
GiroDisc D1-153 slotted front rings replace stock rotors on 2009-2012 Porsche 911 Carrera 997.2 models including Carrera Carrera S Carrera 4 and Carrera 4S. These high-carbon alloy rings bolt to GiroDisc aluminum hats for a two-piece setup that cuts unsprung weight by 5.4 lbs per corner versus OEM. Slotted surfaces clear water gases and debris for consistent braking from street to track.
Key Features
- Two-Piece Design: 6061-T6 aircraft-grade aluminum hats pair with slotted high-carbon iron rings to manage heat and resist warping under hard use.
- Slotted Configuration: Directional slots channel gases water and pad residue away from the rotor surface for shorter stopping distances in wet or high-performance driving.
- Lightweight Construction: Each ring weighs 20.4 lbs reducing rotational inertia by over 10 lbs per axle compared to factory 25.8 lb rotors.
- Precision Dimensions: 350mm x 30mm OD matches OEM specs for bolt-on fit with no modifications required.
- High-Carbon Alloy: Proprietary formula withstands race-level abuse with minimal fade and long service life.
Product Notes
- Sold as pair of front rotor rings only requires GiroDisc hats D1H-153 and hardware kit for complete assembly.
- Bed-in pads per GiroDisc instructions for peak performance and even wear.
- Packaged in protective foam-lined box shipping weight 44 lbs dimensions 18 x 18 x 6 inches.
Installation Notes
- Professional installation recommended.
- Torque ring-to-hat bolts to 22 ft-lbs using GiroDisc supplied hardware and red Loctite.
- Compatible with OEM calipers pads and hats not included verify hat condition before install.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2012 | Porsche | 911 | Carrera |
| 2009-2012 | Porsche | 911 | Carrera 4 |
| 2009-2012 | Porsche | 911 | Carrera 4S |
| 2009-2012 | Porsche | 911 | Carrera S |
Why Choose GiroDisc?
- Proven in endurance racing with wins at Le Mans and SCCA events.
- CNC-machined in USA from premium materials for exact tolerances.
- Direct bolt-on engineering handles daily driving and track days without compromise.
Frequently Asked Questions
-
Q: Will D1-153 fit my 997.2 Carrera GT3?
A: No these rings fit standard Carrera brake setups 350x30mm GT3 uses different 350x34mm rotors use D1-157 instead. -
Q: What material are the rotor rings?
A: High-carbon 4340-equivalent alloy with balanced carbon content for heat resistance crack prevention and consistent friction. -
Q: What is the warranty and install process?
A: Limited lifetime warranty on rings against defects. Install takes 2-4 hours per axle with basic tools clean hats apply anti-seize to hat posts and torque per specs.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Foam-protected box 18 x 18 x 6 inches
- Weight: 44 lbs
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