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GiroDisc Upgraded Brake Rotors
GiroDisc's direct-replacement rotors for the 997 GT3 Cup car, a lightweight alternative to the factory disc that bolts on with no modification and works with the OE calipers. Choosing these over a big brake kit keeps the car's factory brake bias and ABS calibration intact, and the front rotor comes in around 21.0 lbs against 25.6 lbs for the stock unit, cutting rotational and unsprung weight for quicker acceleration and sharper suspension response. The central hat is US-sourced 6061-T6 aircraft-spec aluminum, and the disc is GiroDisc's own cast iron, poured and machined in-house in the USA, with a curved vane design that pumps cooling air through as the wheel turns. Ten cadmium-plated drive pins carry the braking load, with anti-noise spring washers to stop cold rattle.
Frequently asked
Does the GiroDisc Upgraded Brake Rotors fit my 911 GT3 Cup?
This listing is specific to the Porsche 911 GT3 Cup. Exact fitment for your year, trim and options is confirmed on your free consult before anything is ordered.
What does the price include?
The delivered price includes the part from Fabspeed USA, freight to Australia, import costs and GST. Enter your postcode to refine delivery; the final figure is confirmed on consult.
How long until it arrives?
Every Fabspeed part is made in-house at Fabspeed USA with about a one-week production lead time, then allow another 3-4 days for delivery to Australia via UPS. That freight is already included in the price.
How much lighter are these than the stock rotors?
The front rotor is about 21.0 lbs versus 25.6 lbs for the stock unit, a reduction in both rotational and unsprung weight.
Do these change the car's brake bias?
No. Because it's a direct replacement working with the OE calipers, choosing these over a big brake kit keeps the factory brake bias and ABS efficiency intact.
Do I need new calipers or pads to run these?
No, they bolt directly to the car and work with the OE calipers, no modification necessary.
Who installs it?
Rennen Motorsport in Adelaide, or an authorised dealer near you. Fitting it yourself may also be an option depending on the part, so raise it on your consult; professional installation is quoted separately.
Is it covered by warranty?
Fabspeed products carry the manufacturer's warranty, supported locally through Rennen Plus as the Australian principal. See our returns policy.
Can I just buy this outright, or do I need to talk to someone first?
Every enquiry, whether it's one part or a full build, starts with a free consult. We confirm the exact spec for your car before anything is quoted or ordered.
