Select the year of your Porsche 911:

If you're looking to upgrade your Porsche 991 GT3 or GT3 RS, the Girodisc system is a solid choice that really delivers’no frills, just performance. This isn’t just another aftermarket rotor; it’s a direct replacement for your rear OE disc. What’s great is that you won’t need to modify anything, and you can stick with your factory pads. That’s a big win since most aftermarket options force you into a whole new setup.
What I love about these rotors is how they bolt right on and fit seamlessly with your OE calipers. You’re keeping the factory balance, which means your ABS still works like a charm. No need to mess with big brake kits here; this upgrade keeps things simple while enhancing performance.
Now, let’s talk about the materials. The central hat section is crafted from U.S.-sourced 6061-T6 aircraft-grade aluminum’serious stuff. The disc itself is made from a proprietary cast iron that’s poured and machined right here in the USA at Girodisc. The design features curved vanes that act like a centrifugal pump, pushing cool air through the disc. This is a nifty trick borrowed from racing that helps keep your brakes from overheating, especially during those spirited drives.
Another cool feature is the floating mount system. It uses 12 high-strength alloy steel drive pins, custom-made by Girodisc to our specs and cadmium plated for corrosion resistance. These pins handle the load from braking while allowing for axial and radial float between the hat and disc. Plus, they’re secured with class 12.9 cap screws and hardened washers for extra durability. To keep things quiet when it’s cold, we’ve added anti-noise spring washers on the rotor side. This means the rotor can expand with heat but won’t rattle like some floating rotors tend to do. It also helps the rotor self-center between the pads, which is a nice touch.
Fitments:
- Porsche 991 GT3 | GT3 RS | GT2 RS with OEM Iron Rotors
- Porsche 991.1 GT3 with OEM Iron Rotors
Notes:
- Once you’ve got the Girodisc system installed, swapping out the cast iron rotor when needed is a breeze.
- Pair it with performance pads and high-temp fluid, and you’ll have a setup that tackles overheating and warping like a champ.
- If your car comes with OEM center lock wheels, make sure to choose the center lock drive pin option.
- These are sold and priced in pairs, so keep that in mind when you're ordering.
Product Fitment:
Porsche 991.1 GT2 RS 2018-2019
Porsche 991.1 GT3/GT3 RS 2014-2016 A2-146 GiroDisc 2-Piece 380mm Rear Rotors for Porsche 991 GT3 | GT3 RS | GT2 RS | 991.1 GT3.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
2014-2016, 2018-2019 Porsche 911 |
911 | 2014-2016, 2018-2019 |
Girodisc is an aftermarket company that was founded in 2003 in Costa Mesa, California. It specializes in high quality brake components and initially catered to one of the best cars in the world, Ferrari. They later expanded their product offering by offering their products to various vehicle platforms. Today, they have become one of the fastest growing companies in the industry.
Continuous ImprovementAs the company continued to grow, they relocated to a bigger facility in Bellingham, WA in a 17,000 square foot facility. It is equipped with the latest manufacturing tool available along with a dedicated rotor casting tool and a brake dynamometer. This helps them ensure that each product that comes out of their facility meets their high standard.
The Best of The BestGirodisc offers some of the best brake components in the market and is known for its two-piece brake rotors. These are bolt on parts that fit directly on the vehicle. They only use the best material available which helps them create the best products.
Performing As Good As Good As It LooksTheir products are designed to have both form and function. Their rotors are made to improve brake ventilation and its cooling capability. It is also lighter which helps reduce unsprung weight. It comes in a variety of color finishes and slot patterns depending on your preferred style.
Purchase Girodisc Products at Vivid RacingIf you are in search of quality brake components and upgrades for your vehicle, then Girodisc is the brand for you. They have brakes designed for both street and high performance applications. To know more about Girodisc, visit Vivid Racing and check out their list of products that would fit your specific needs.
If Purchaser provides Seller with written notice of any condition inconsistent with the specification set forth above on or before six (6) months from the date of delivery and complies with the return requirements set forth in Section 6, then Seller will, at its election either:
- Provide a replacement Product, or
- Refund the purchase price.
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