SKU: A2-031
GiroDisc Porsche Boxster S (986) 1997-2004 325mm Slotted Rear Rotors
GiroDisc slotted rear rotors provide high-performance braking for the Porsche Boxster S (986 chassis) from 1997 to 2004. These 325mm x 24mm two-piece rotors replace OEM parts directly with a floating design that reduces unsprung weight and resists warping under hard use. Drivers experience consistent pedal feel and fade-free stopping during track days or spirited road driving.
Key Features
- Two-Piece Floating Design: 6061-T6 aircraft-grade aluminum hats separate from high-carbon alloy rotors to allow independent expansion, minimizing heat transfer and warping.
- 72 Curved Vanes: Internal vanes direct cooling air through the rotor vanes for rapid heat dissipation during repeated hard braking.
- Slotted Surface: Precision slots clear gases, water, and debris for improved initial bite and modulation in wet or dry conditions.
- Lightweight Construction: Each rotor weighs 15.2 lbs versus OEM 20.5 lbs, reducing unsprung mass for sharper handling and suspension response.
- Black Anodized Hats: Corrosion-resistant finish maintains appearance and structural integrity in harsh environments.
Product Notes
- Pair of rotors included. hardware kit available separately if needed.
- Bed-in procedure required after installation for peak performance.
- Heavy item. secure packaging prevents damage during transit.
Installation Notes
- Professional installation recommended.
- Direct bolt-on replacement using factory calipers and hardware.
- Torque hub and caliper bolts to Porsche specifications (120 Nm hub, 35 Nm caliper).
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2004 | Porsche | Boxster | Boxster S |
Why Choose GiroDisc?
- GiroDisc sets the standard for two-piece performance rotors in Porsche applications since 2003.
- High-carbon rotors retain hardness after repeated high-heat cycles.
- Patented engineering ensures perfect balance and hub-centric fit.
Frequently Asked Questions
- Q: Will these rotors fit the base Boxster (non-S)?
A: No, designed exclusively for Boxster S models with 325mm rear rotors. base models use 299mm. - Q: What material are the rotors made from?
A: Hats are 6061-T6 aluminum. friction rings are high-carbon alloy steel for strength and heat resistance. - Q: What is the warranty policy?
A: GiroDisc offers a one-year warranty against defects. rotor exchange program available for wear.
Shipping & Handling
- Method: UPS Ground or Freight for pairs
- Availability: In stock – ships same or next business day
- Packaging: Secure foam-lined box measuring 24 x 24 x 12 inches
- Weight: 32 lbs (pair)
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