SKU: A1-032A
GiroDisc Porsche 911 Carrera S/4S (996/997) 350mm Slotted Front Rotors
GiroDisc two-piece slotted front rotors replace OEM 350x30mm units on Porsche 996 Carrera S/4S and 997 Carrera S/4S models. Each rotor weighs 20.95 lbs versus OEM 27.55 lbs for reduced unsprung mass and sharper response. Slotted surfaces and curved vanes deliver consistent stopping power with improved heat management during track or street use.
Key Features
- Two-Piece Construction: 6061-T6 aircraft aluminum hat floats against high-carbon alloy ring to cut 6.6 lbs per rotor and absorb expansion.
- Slotted Design: Precision slots clear gases and debris for stronger initial bite and even pad wear in wet or dry conditions.
- Curved Vanes: Internal geometry channels cooling air axially to lower temperatures and prevent fade on repeated hard stops.
- High-Carbon Alloy Rings: 72 friction rings resist thermal cracking and maintain flatness under extreme stress.
- Anodized Hats: Hard black anodizing fights corrosion while stainless steel hardware ensures secure attachment.
Product Notes
- Pair of rotors includes all mounting hardware for direct OEM replacement.
- Clean rotors with non-corrosive brake cleaner before bedding pads.
- Packaged as pair in protective box measuring 18in x 18in x 6in.
Installation Notes
- Professional installation recommended.
- Bolt directly to OEM hubs using included Grade 12.9 hardware.
- Compatible with factory Porsche calipers and GT3 big brake kits.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2004 | Porsche | 911 | Carrera S |
| 2002-2004 | Porsche | 911 | Carrera 4S |
| 2005-2008 | Porsche | 911 | Carrera S |
| 2006-2008 | Porsche | 911 | Carrera 4S |
Why Choose GiroDisc?
- Built with racing-proven technology from endurance events worldwide.
- Hand-assembled in USA with aerospace-grade materials for durability.
- Engineered for direct fit and thermal performance on Porsche chassis.
Frequently Asked Questions
- Q: Will these rotors fit my 997 Carrera S with 350mm brakes?
A: Yes, designed for 2005-2008 997 Carrera S and 4S models equipped with factory 350x30mm front rotors. - Q: What material are the rotors made from?
A: High-carbon alloy friction rings paired with 6061-T6 aluminum hats, fully floating with stainless bushing. - Q: What is the warranty and bedding process?
A: One-year defect warranty. bed in with 10-15 progressive stops from 60-10 mph, allowing cool-down between sets.
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure pair box 18 x 18 x 6 inches
- Weight: 44 lbs
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