GiroDisc Porsche 911 Carrera/C4/T (991.2) 350mm Slotted Front Rotors (A1-203)
The Girodisc system offers a direct replacement for the OE disc, including caliper spacers. With a slightly larger rotor size of 350mm compared to the OEM rotor's 330mm, it delivers increased braking force and improved cooling capacity. The rotor features a central hat section made from U.S.-sourced 6061-T6 aircraft aluminum, while the disc itself is crafted from Girodisc's proprietary cast iron, poured, and machined in-house. The rotor's curved vane design, inspired by racing, acts as a centrifugal pump to effectively force cooling air through the disc. The rotor and hat utilize a floating mount system with 10 high-strength alloy steel drive pins, manufactured by Girodisc to their own specifications and treated with cadmium plating for long-lasting corrosion resistance. These pins ensure load distribution during braking while allowing for axial and radial float between the hat and disc. To prevent noise when cold, anti-noise spring washers are mounted on the rotor side, allowing for heat expansion without the associated rattling or noise typically found in floating rotors. This float also enables the rotor to self-center between the pads, ensuring optimal performance.
APPLICATIONS
- Porsche 718 Boxster (2017, 2018, 2019, 2020, 2021)
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Porsche 718 Cayman (2017, 2018, 2019, 2020, 2021)
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Porsche 991.2 Carrera (2017, 2018, 2019, 2020, 2021)
FEATURES
- Direct replacement for OE disc with provided caliper spacers
- Larger rotor size of 350mm for increased braking force and cooling capacity
- Central hat section made from U.S.-sourced 6061-T6 aircraft aluminum
- Disc made from proprietary cast iron, poured and machined in-house
- Curved vane design acts as a centrifugal pump for enhanced cooling
- Floating mount system with 10 high-strength alloy steel drive pins
- Pins manufactured by Girodisc, cadmium plated for corrosion resistance
- Pins maintain axial and radial float between hat and disc
- Class 12.9 cap screws with hardened washers for pin security
- Anti-noise spring washers eliminate cold noise and allow for heat expansion
- Rotor self-centering between pads for optimal performance
To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.
Depending on the package, we ship using different carriers according to the item's location, content, and size.
Freight truck & international items, will require up to 7 business days to ship due to size and logistics.
All orders made after 3:00pm ET will be shipped or processed the next business day.
Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.
Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.
All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.
Processing and logistics on in stock international orders can take up to 7 business days to process & ship.
In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).
Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.
For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.
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GiroDisc Porsche 911 Carrera/C4/T (991.2) 350mm Slotted Front Rotors (A1-203)
