Click to open expanded view

Girodisc 2 Piece Front Rotors Porsche 986 / 987 / 996 / 997

SKU: GIRA1-031
Price
$1,250.00
In Stock and Ready to Ship!

This Product Qualifies for Free Shipping

Need some product help?
Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

Upgrade the braking performance and thermal capacity of your Porsche with the GiroDisc 340mm 2-Piece Front Brake Rotor Kit. Rather than simply replacing the factory 317mm rotors with another stock-size disc, GiroDisc increases the front rotor diameter to 340mm, providing greater braking leverage and increased capacity to manage heat during aggressive street or track driving. The two-piece design combines GiroDisc's proprietary cast-iron friction rings with lightweight 6061-T6 aluminum hats, creating a performance-focused replacement that retains the factory calipers and overall braking system architecture. Curved internal vanes act as a centrifugal pump to move cooling air through the rotor, while GiroDisc's floating mounting system allows the iron disc to expand independently as temperatures increase. Included caliper spacers and longer mounting bolts reposition the factory calipers for the larger rotor diameter, eliminating the need for a complete big-brake kit. Once installed, future servicing is also more economical because the aluminum hats can be retained and only the cast-iron friction rings need to be replaced.

Fitment Notes

  • Fits Porsche 986 Boxster S

  • Fits applicable Porsche 987 Boxster S

  • Fits applicable Porsche 987 Cayman S

  • Fits Porsche 987 Cayman R

  • Fits applicable Porsche 987.2 Cayman models

  • Fits Porsche 911 Carrera (996)

  • Fits Porsche 911 Carrera 4 (996)

  • Fits Porsche 911 Carrera (997.1)

  • Fits Porsche 911 Carrera 4 (997.1)

  • Intended for applicable vehicles equipped with factory iron brakes

  • Does not apply to PCCB-equipped applications

  • Uses the factory front brake calipers with the supplied caliper spacers and longer bolts

  • Upgrades factory 317mm front rotors to 340mm

  • No complete big-brake-kit conversion is required

  • Verify exact model and factory brake configuration before ordering

Included

  • 2 GiroDisc 340mm two-piece front brake rotors

  • Left and right 6061-T6 aluminum rotor hats

  • Left and right proprietary cast-iron friction rings

  • Caliper spacers

  • Longer caliper mounting bolts

  • GiroDisc floating rotor hardware

Product Specs

  • GiroDisc Part Number: A1-031

  • Position: Front

  • Quantity: Sold as a pair

  • Rotor Diameter: 340mm

  • Factory Rotor Diameter: 317mm

  • Rotor Design: 2-piece floating

  • Friction Ring Material: GiroDisc proprietary cast iron

  • Hat Material: U.S.-sourced 6061-T6 aircraft-specification aluminum

  • Internal Vane Design: Curved directional cooling vanes

  • Floating Hardware: 10 high-strength alloy-steel drive pins per rotor

  • Drive Pin Finish: Cadmium plated

  • Fasteners: Class 12.9 cap screws with hardened washers

  • Anti-Noise Hardware: Spring washers

  • Replacement Friction Ring: D1-031

Product Features

  • Larger 340mm rotor diameter increases braking leverage and cooling capacity compared with the factory 317mm front rotor

  • Two-piece construction combines lightweight 6061-T6 aluminum hats with replaceable cast-iron friction rings for a performance-focused alternative to one-piece OEM rotors

  • Racing-derived curved internal vanes pump cooling air through the rotor, improving heat management during repeated hard braking

  • GiroDisc's 10-pin floating mounting system allows axial and radial movement as the rotor heats and expands while helping the disc remain centered between the brake pads

  • Anti-noise spring washers help control the cold rattle commonly associated with fully floating brake rotors without preventing proper thermal expansion

  • Supplied caliper spacers and longer bolts allow the larger 340mm rotors to work with the factory front calipers, delivering a meaningful brake upgrade without requiring a complete big-brake kit