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

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

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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. 

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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.

Cancellations / Returns

Original sales receipt or order number must accompany all return requests.

Forza Motor Works accepts returns for exchange, store credit, or refund within fourteen (14) calendar days of the delivery date, subject to the terms and conditions below. After fourteen (14) calendar days, all sales are final unless otherwise approved in writing by Forza Motor Works.

To be eligible for return, products must be in new, unused, unaltered, and resalable condition, including all original packaging, instructions, hardware, documentation, and accessories. Returned items must not show any signs of installation, use, wear, damage, modification, painting, coating, or alteration of any kind.

The following items are non-returnable and non-refundable:

• Special-order products
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• Products with extended lead times, including but not limited to headers, exhaust systems, wheels, and other special-order performance products
• Any item specifically identified on the product page as non-returnable

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To obtain a Return Merchandise Authorization (RMA), please contact:

Forza Motor Works
Email: info@forzamotorworks.com

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Approved returns may be subject to a restocking fee of up to twenty five percent (25%) of the purchase price. Original shipping charges are non-refundable. Customer is responsible for all return shipping costs unless the return is the direct result of an error made by Forza Motor Works.

FITMENT, INSTALLATION & PRODUCT USE

Customer is responsible for verifying vehicle compatibility, fitment, and intended use prior to installation. While Forza Motor Works makes reasonable efforts to provide accurate product information and fitment guidance, final responsibility for compatibility rests solely with the customer.

Products that have been installed, test-fitted, modified, painted, coated, damaged, or otherwise used are not eligible for return.

Many aftermarket performance products are intended for off-road, racing, or competition use only and may not be legal for use on public roads in all jurisdictions. Customer is solely responsible for determining compliance with all applicable federal, state, and local laws and regulations.

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FORZA MOTOR WORKS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING FROM THE PURCHASE, INSTALLATION, USE, MISUSE, FAILURE, OR INABILITY TO USE ANY PRODUCT SOLD BY FORZA MOTOR WORKS.

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TO THE MAXIMUM EXTENT PERMITTED BY LAW, FORZA MOTOR WORKS' TOTAL LIABILITY FOR ANY CLAIM ARISING FROM THE PURCHASE OR USE OF A PRODUCT SHALL NOT EXCEED THE AMOUNT PAID FOR THE SPECIFIC PRODUCT GIVING RISE TO THE CLAIM.

By placing an order with Forza Motor Works, the customer acknowledges and agrees to all terms and conditions contained herein, including all return, exchange, warranty, and limitation-of-liability provisions.

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