SKU: D1-032
GiroDisc 2001-2009 Porsche 911 Carrera S/4S (996/997) 350mm Slotted Front Rings
GiroDisc slotted front rotor rings provide direct replacement braking upgrades for Porsche 911 Carrera S and Carrera 4S models in 996 and 997 chassis. The 350mm diameter slotted design channels heat and gases for consistent pad contact during hard driving. Two-piece construction with aluminum hats reduces unsprung weight by 14 lbs per pair compared to stock rotors for sharper suspension response and handling.
Key Features
- Directionally Stress-Controlled Slots: Proprietary 48-slot pattern vents gases and resists cracking under track abuse for extended service life
- 72 Curved Internal Vanes: Maximizes airflow to cool rotors 20% faster than straight vane designs reducing fade on repeated stops
- High-Carbon Alloy Iron Rings: 350mm x 34mm dimensions match OEM specs with added ductility to handle high-heat conditions without warping
- 6061-T6 Aluminum Hats: Hard-anodized black finish prevents corrosion and weighs 6.5 lbs each versus heavier steel OEM hats
- Floating Two-Piece Assembly: Allows thermal expansion to eliminate hat-to-ring stress each ring weighs 21.3 lbs versus stock equivalent 27.5 lbs
Product Notes
- Requires GiroDisc hats and fasteners sold separately or as full assembly
- Bed-in procedure essential for optimal performance follow GiroDisc guidelines
- Pair only ships bare rings professional packaging protects edges during transit
Installation Notes
- Professional installation recommended.
- Bolt pattern 5x130mm matches Porsche OEM hubs no modifications needed
- Use anti-seize on hat hardware torque to 35 ft-lbs compatible with OEM calipers
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2004 | Porsche | 911 | Carrera S |
| 2002-2005 | Porsche | 911 | Carrera 4S |
| 2005-2008 | Porsche | 911 | Carrera S |
| 2006-2009 | Porsche | 911 | Carrera 4S |
Why Choose GiroDisc?
- Proven in Porsche Club racing and PCA events nationwide
- Machined in USA from aerospace-grade materials
- Engineered for 996/997 big brake setups with zero runout tolerance
Frequently Asked Questions
-
Q: Will these fit my 997 Carrera S with standard brakes?
A: Yes direct bolt-on for factory 350mm front calipers on Carrera S/4S models no adapters required -
Q: What material are the rings made from?
A: High-carbon ductile iron slotted on both sides for balanced cooling resists heat checking better than drilled rotors -
Q: What is the warranty and bedding process?
A: 12-month defect warranty bed with 10 hard stops from 50-10 mph then 3 medium stops from 80 mph
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Custom foam-lined box 20 x 20 x 10 inches
- Weight: 45 lbs (pair of rings)
Brake Rotors
Brake rotors work with brake pads to bring your vehicle to a controlled stop. Upgrading from worn or stock rotors to a performance or OE-quality replacement improves braking consistency, reduces fade, and restores the original factory feel. Popular ProductsPopular brake rotor choices include EBC Brakes USR slotted rotors, Brembo OE-replacement rotors, StopTech Sport cross-drilled and slotted rotors, and Centric Premium rotors for OE-quality service replacement. What is the difference between slotted, drilled, and blank rotors?Blank rotors are standard OE-style with no machining, suitable for daily drivers. Slotted rotors have channels cut into the face for debris evacuation and improved high-heat performance. Cross-drilled and slotted rotors combine both features but may crack under extreme track use. How do I know when brake rotors need replacement?Replace rotors when rotor thickness falls below the minimum spec stamped on the rotor hat, when lateral runout exceeds 0.003 inches, or...
View Brake Rotors Products
Brake Rotors - Slotted
Welcome to our exclusive Brake Rotors - Slotted collection, designed for performance enthusiasts who demand the best from their vehicles. Slotted brake rotors provide improved heat dissipation and better grip, ensuring that you can stop on a dime, even in the most challenging conditions. This collection features a wide variety of high-quality slotted brake rotors, perfect for enhancing your vehicle's braking performance. Why Choose Slotted Brake Rotors? Slotted brake rotors offer several advantages over traditional rotors, including: Enhanced Stopping Power: The slots on the surface of the rotors help to channel away dust and debris, providing a cleaner contact area for the brake pads. Improved Heat Management: Slotted designs allow for better airflow, reducing the risk of brake fade during intense driving situations. Durability: Our slotted brake rotors are crafted from premium materials, ensuring longevity and consistent performance. Shop with Confidence Each product in our...
View Brake Rotors - Slotted Products
Brakes
Performance Brakes, Brake Pads, Rotors & Big Brake Kits Shop premium performance brake parts, brake pads, brake rotors, big brake kits, brake calipers, brake line kits, stainless steel brake lines, brake hardware, brake master cylinders, brake drums, brake shoes, hand brakes, and brake adapters at Black Ops Auto Works. This collection is built for drivers who need dependable stopping power, improved pedal feel, fade resistance, and braking confidence for street performance, towing, daily driving, racing, off-road use, and custom builds. Whether you are upgrading a muscle car, truck, SUV, Jeep, Dodge, Ford, BMW, Audi, Nissan, Honda, Subaru, Lexus, Hyundai, Mazda, Infiniti, Toyota, or track-focused vehicle, our Brakes collection includes high-quality brake system components designed for fitment, durability, and performance. Brake Parts from Top Brands Shop trusted brake brands available in our catalog, including: DBA brake rotors EBC Brakes pads and rotors Hawk Performance brake ...
View Brakes Products
GiroDisc
GiroDisc manufactures premium two-piece floating brake rotors designed for performance street and track applications where reduced unsprung weight, superior thermal management, and consistent pedal feel under repeated hard braking are required. The two-piece design separates the cast iron friction ring from the aluminum hat using a patented floater system that allows the rotor to expand thermally without transmitting warping stress to the hub, eliminating the judder and pedal pulsation that single-piece rotors develop after repeated track sessions. GiroDisc rotors are available for a wide range of European and Japanese sports cars including Porsche, BMW M, Ferrari, Lamborghini, and the Subaru WRX, targeting enthusiasts and racers who demand the same engineering quality in their brake hardware as in their suspension and engine components. The significant weight reduction compared to equivalent cast iron rotors improves both acceleration and braking response by reducing the rotational...
View GiroDisc Products
Porsche Parts & Accessories
Shop Porsche parts and accessories at Black Ops Auto Works for 911, Cayman, Boxster, Macan, Cayenne, Panamera, 718, 996, 997, 991, 992, 986, 987, 981, 982, 964, 993, 944 Turbo, GT3, GT3 RS, GT4, Turbo, Carrera, and performance Porsche builds. This collection includes exhaust systems, muffler bypass pipes, sport cats, downpipes, suspension upgrades, coilovers, sway bars, shocks, struts, brake pads, brake rotors, caliper rebuild kits, carbon fiber exterior parts, intake systems, air filters, cooling parts, wheel spacers, wheel bolts, drivetrain upgrades, engine parts, valve guides, fuel injectors, and Porsche styling accessories. Use this Porsche collection to find the right upgrade by model, chassis code, product category, brand, and driving goal. Exhaust and intake upgrades help improve sound and airflow, brake upgrades support stronger stopping power, suspension parts improve handling and ride control, carbon fiber parts add lightweight styling, cooling parts support demanding driv...
View Porsche Parts & Accessories Products


