SKU: D2-035
GiroDisc Porsche Cayman/Boxster (981 Base) 2013-2016 325mm Slotted Rear Rings
GiroDisc slotted rear rotor rings deliver direct replacement braking performance for 2013-2016 Porsche Cayman and Boxster 981 base models. These 325mm x 20mm rings feature aggressive slots to channel heat and clear gases improving stopping power during spirited drives. Lighter than stock they cut unsprung weight for sharper handling and reduced fade on track or street.
Key Features
- High Carbon Ductile Iron: Cast from premium 48kpsi tensile strength material resists cracking under extreme heat for consistent performance lap after lap
- Directional Slotted Design: Expels brake gases dust and water while promoting even pad wear and cooling airflow to fight fade
- Weight Reduction: Each ring weighs 13.2 lbs versus OEM 18.5 lbs saving 10.6 lbs per pair to improve acceleration suspension response and fuel efficiency
- Precision 2x2 Slot Pattern: Minimizes noise vibration and harshness while maximizing bite in wet dry and high-heat conditions
- Hubcentric Fitment: CNC machined ID ensures perfect balance and zero-runout installation without adapters
Product Notes
- Rings only require matching GiroDisc rear hats for complete assembly
- Bed-in process essential for optimal performance follow GiroDisc guidelines
- Packaged as pair ships in protective foam-lined box 18x18x5 inches
Installation Notes
- Professional installation recommended.
- Reuse OEM or purchase GiroDisc hats hardware torque to factory specs
- Bolt pattern 5x130mm compatible with OEM calipers and pads
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2016 | Porsche | Boxster | Base PDK Manual |
| 2013-2016 | Porsche | Cayman | Base PDK Manual |
Why Choose GiroDisc?
- Handcrafted in USA with aerospace-grade processes for track-proven durability
- Used by Porsche Club racers and enthusiasts for reliable high-heat braking
- Engineered for two-piece design that expands contracts evenly preventing warp
Frequently Asked Questions
-
Q: Will these fit Porsche 981 Cayman S models?
A: No designed exclusively for base models with 325mm rear rotors Cayman S uses 330mm rotors select D2-036 -
Q: What material composition provides the strength?
A: High carbon 72 series ductile iron exceeds OEM specs for thermal conductivity and crack resistance -
Q: What warranty coverage applies?
A: Limited lifetime warranty against manufacturing defects when installed and maintained per guidelines
Shipping & Handling
- Method: UPS Ground or FedEx freight for heavy items
- Availability: In stock - ships same or next business day
- Packaging: Pair in 18x18x5 inch double-walled box with foam inserts
- Weight: 28 lbs shipped
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