GiroDisc 03-09 Nissan 350Z (w/Brembo Calipers) 2-Piece Slotted Rear Rotors

Two-Piece Floating Slotted Rear Rotors Built for the 2003-2009 Nissan 350Z Running Brembo Calipers

The GiroDisc A2-013 replaces the heavy, one-piece rear rotors on your 2003-2009 Nissan 350Z equipped with factory Brembo calipers with a fully-floating two-piece assembly engineered to reduce unsprung weight, lower operating temperatures, and improve braking feel under repeated hard stops. The aluminum hat is machined from 6061-T6 aircraft-specification aluminum sourced in the USA and paired with GiroDisc's own proprietary cast iron rotor rings, poured and machined entirely in-house in the USA. The GIRA2-013 floats on 10 cadmium-plated alloy steel drive pins fitted with anti-noise spring washers, allowing the ring to self-center between pads and thermally expand without transferring stress to the hat.

Key Features

• Two-piece fully-floating design reduces unsprung weight versus OEM one-piece rotors for improved handling dynamics
• 6061-T6 aircraft-specification aluminum hat sourced entirely from US material
• Proprietary GiroDisc cast iron rotor rings poured and machined in the USA to pro-race standards
• Curved vane design acts as a centrifugal pump to force cooling air through the disc under hard braking
• 10 high-strength alloy steel drive pins, cadmium-plated for corrosion resistance, transmit braking torque while allowing axial and radial float
• Anti-noise spring washers on all pins prevent cold rattle while allowing thermal expansion at operating temperature
• Floating mount system allows the rotor ring to self-center between the brake pads for even pad wear
• Direct bolt-on replacement for 2003-2009 Nissan 350Z with factory Brembo rear calipers; no modifications required
• Slotted finish clears gas, dust, and debris from the pad surface for consistent bite under repeated stops
• Sold as a pair (left and right)

Vehicle Fitment

Specifications

What's Included

• 2x GiroDisc A2-013 2-piece floating rear rotor assemblies (left and right)
• Drive pins pre-installed with anti-noise spring washers
• Class 12.9 cap screws and hardened washers

About GiroDisc

GiroDisc designs, manufactures, and sells two-piece fully-floating brake rotors entirely in the USA. Every rotor ring is poured from proprietary cast iron in-house, and every hat is machined from domestically sourced 6061-T6 aluminum. GiroDisc products are trusted on street cars, track day cars, and professional racing programs across North America and Europe. The company's engineering focus is simple: reduce unsprung weight, improve thermal capacity, and maintain the consistent pedal feel that drivers depend on when braking hard lap after lap.

Frequently Asked Questions

The GiroDisc A2-013 is a pair of two-piece fully-floating slotted rear brake rotors designed for 2003-2009 Nissan 350Z models equipped with factory Brembo rear calipers. They feature a 6061-T6 aluminum hat, GiroDisc proprietary cast iron rotor rings, and a 10-pin floating mount system, all manufactured in the USA.

Yes. The GIRA2-013 is designed as a direct bolt-on replacement for the factory Brembo rear rotor and caliper combination found on the 2003-2009 Nissan 350Z. No modifications to the caliper, bracket, or hub are required.

The Brembo brake package was standard on the 350Z Track trim and available on the 350Z Touring. Verify that your specific vehicle has the larger Brembo rear calipers before ordering. Standard non-Brembo 350Z rear rotors use a different part number.

Two-piece floating rotors reduce unsprung weight at the corner, which improves suspension response and handling feedback. The float between the hat and rotor ring allows thermal expansion under heavy braking without warping, and the aluminum hat dissipates heat faster than a full iron disc, lowering rotor temperatures on repeated hard stops.

GiroDisc fits all drive pins with anti-noise spring washers on the rotor side. These washers keep light pressure on the ring at ambient temperature to eliminate cold rattle, while still allowing the ring to float freely at operating temperature when thermal expansion takes over.

Yes. GiroDisc two-piece rotors are widely accepted at HPDE and track day events. The A2-013 meets or exceeds OEM dimensions, uses a recognized slotted finish, and does not require any modifications that would raise safety concerns. Always confirm specific event rules with your track day organizer.

The A2-013 rotor rings are compatible with any brake pad compound approved for use with OEM 350Z Brembo rear calipers. For street and occasional track use, a high-performance street pad works well. For dedicated track use, a race compound with a higher operating temperature range is recommended to match the thermal capacity of the two-piece rotor system.

GiroDisc recommends a standard bedding procedure: perform 8 to 10 progressively harder stops from approximately 60 mph down to 10 mph, allowing the brakes to cool between each stop. Avoid coming to a complete stop while the rotors are hot during bedding. After bedding, allow the system to fully cool before resuming normal driving.

Installation Instructions

1. Safely lift the vehicle and support it on jack stands. Remove the rear wheels.
2. Remove the rear Brembo caliper mounting bolts and hang the caliper aside without stressing the brake line.
3. Remove the OEM rear rotor. If the rotor is stuck to the hub, thread two bolts into the rotor jacking holes to break it free.
4. Clean the hub mating surface with a wire brush to remove rust and debris. Apply a thin coat of anti-seize compound to the hub face and lug studs.
5. Mount the GiroDisc A2-013 rotor assembly onto the hub. Confirm the rotor ring floats freely on the drive pins and the hat seats flush against the hub flange.
6. Reinstall the Brembo caliper and torque the caliper mounting bolts to factory specification.
7. Reinstall the rear wheel and torque the lug nuts to factory specification in a star pattern.
8. Lower the vehicle and pump the brake pedal until firm before attempting to move.
9. Perform a standard rotor bedding procedure as described above before hard braking.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.