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GiroDisc Upgraded Brake Rotors
GiroDisc's two-piece rotors give 981/718 Cayman GT4 owners running factory iron (non-PCCB) rotors a lighter, cheaper way onto track than costly OE ceramic replacement. The hat is machined from US-sourced 6061-T6 aircraft-grade aluminium, and the cast iron disc is poured and finished in-house with a curved vane design that pumps cooling air through the rotor. A floating pin mount lets the disc expand with heat independently of the hat, cutting the rattle that plagues cheaper floating rotors while self-centring between the pads.
Frequently asked
Which cars does the GiroDisc Upgraded Brake Rotors fit?
Fits your 981 Cayman GT4. Fabspeed lists this piece for: Porsche 981 Cayman GT4; Porsche 718 Cayman GT4 / GT4 RS (factory iron rotors, non-PCCB). 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.
Does this fit a PCCB-equipped GT4?
This listing covers vehicles with the factory iron (non-PCCB) rotors; front and rear standard-brake and PCCB options are all offered so choose the one matching your car.
Why choose these over OE ceramic replacements?
They're a lighter, more cost-effective alternative to costly OE ceramic replacement for cars that see track use.
I currently have carbon ceramic brakes - can I switch to iron?
Yes, but Fabspeed strongly recommends replacing all four rotors together to maintain the factory brake bias and controlled braking in all conditions.
Which option should I choose?
Pick the PCCB option only if your GT4 came from the factory with the carbon ceramic brake package - the caliper and mounting geometry differs from the standard steel-brake cars, so ordering the wrong pair won't fit.
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.
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