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

Stop Harder, Run Cooler: The 2-Piece Floating Rotor Built for the 350Z Brembo Platform

The GiroDisc A1-013 is a direct-fit, two-piece floating front brake rotor engineered specifically for 2003-2009 Nissan 350Z models equipped with the factory Brembo four-piston caliper package. Machined and assembled entirely at GiroDisc's facility in Bellingham, Washington, the A1-013 replaces the OEM single-piece iron disc with a premium two-piece assembly that reduces unsprung and rotational mass, dramatically improves thermal management, and keeps pedal feel sharp under repeated hard stops. If your 350Z runs the Brembo caliper setup and you push it on track days, canyon roads, or spirited driving, the A1-013 is the rotor upgrade built to handle that demand.

Key Features

• Direct bolt-on replacement for factory front rotors on 2003-2009 Nissan 350Z with OEM Brembo four-piston calipers
• Two-piece floating rotor construction: 6061-T6 aircraft-grade aluminum hat paired with GiroDisc proprietary high-carbon cast iron ring
• Curved-vane internal cooling channels act as a centrifugal pump, pulling cool air through the rotor under load
• Fully floating mount system with 10 cadmium-plated high-strength alloy steel drive pins for controlled thermal expansion
• Belleville washers and anti-noise spring clips eliminate rattle while maintaining float
• Slotted ring face for continuous pad degassing and swept contact area
• Fully rebuildable: replace the iron rings only when worn and reuse the aluminum hat and hardware
• Made in the USA from domestically sourced materials
• Maintains factory brake bias and ABS calibration

Fitment

Important: The A1-013 fits only 350Z trims equipped with the factory Brembo four-piston front caliper. Confirm your vehicle has the Brembo caliper option before ordering. This rotor is not compatible with standard non-Brembo 350Z brake packages.

Specifications

What's Included

• Two (2) GiroDisc A1-013 two-piece front brake rotors (left and right)
• Pre-installed floating hardware: 10 cadmium-plated drive pins per rotor
• Belleville washers and anti-noise spring clips
• Class 12.9 cap screws with hardened washers
• GiroDisc installation and bedding instructions

About GiroDisc

GiroDisc Racing Brakes and Technologies has been designing and manufacturing two-piece floating brake rotors in Bellingham, Washington since the 1990s. Every A1-013 is poured, machined, and assembled in-house using U.S.-sourced cast iron and aerospace-grade aluminum. GiroDisc's two-piece floating design has become the benchmark for high-performance OEM replacement rotors, trusted by track day drivers and performance enthusiasts who want race-proven thermal management without sacrificing street drivability. The rebuildable design means customers replace only the iron ring when it wears out, reusing the hat and hardware to minimize long-term maintenance costs.

Frequently Asked Questions

Yes. The A1-013 is a direct bolt-on replacement for all 2003-2009 Nissan 350Z models equipped with the factory Brembo four-piston front caliper package. No modifications or adapters are required.

Look through the front wheel at the caliper body. Brembo calipers are typically red with the Brembo script cast into the housing and feature four distinct pistons. The Touring, Track, and Enthusiast trims most commonly received the Brembo brake package, though availability varied by year and region.

Yes. The A1-013 is dimensionally equivalent to the OEM front rotor and works with pads designed for the factory Brembo caliper. No pad modifications or new hardware are required for installation.

The A1-013 uses a two-piece floating design that separates the iron ring from the aluminum hat. This allows the ring to expand thermally without warping, improves cooling through the curved-vane air pump system, and reduces overall unsprung weight compared to a solid one-piece rotor. The result is more consistent pedal feel under repeated hard stops and longer rotor life on track.

The slotted face continuously sweeps away brake dust and outgasses heat from the pad surface during braking. This prevents glazing and maintains consistent bite across a wide temperature range, which is especially important when transitioning between street and track use.

Perform a series of moderate stops from 40-50 mph, allowing the rotor to cool between each stop. Follow with a series of harder stops from 60 mph. Avoid coming to a complete standstill with hot rotors for the first several hundred miles. Full break-in typically takes 200-300 miles of varied driving.

Yes. GiroDisc rotors are fully rebuildable. When the rings reach the minimum thickness of 28mm or develop cracking that reaches the outer edge, you can order replacement rings separately and reuse the aluminum hat and all floating hardware, significantly reducing long-term maintenance cost.

Yes. The anti-noise spring clips and Belleville washers control float while preventing the rattle typically associated with floating rotors. The A1-013 is used daily on street cars and offers a quiet, smooth pedal feel comparable to OEM rotors.

No special tools are required. Standard hand tools and a torque wrench are sufficient. The rotor mounts using your factory hub hardware. Refer to GiroDisc's torque specifications for the drive pin cap screws during assembly if you are rebuilding rings.

Installation Instructions

1. Safely raise and support the vehicle, then remove the front wheels.
2. Remove the brake caliper and support it with a hanger or wire. Do not allow the caliper to hang by the brake hose.
3. Remove the factory brake rotor from the hub. Clean the hub face thoroughly, removing all rust, debris, and surface contamination.
4. Inspect the caliper bracket and hardware. Replace any worn guide pins or boots as needed.
5. Mount the GiroDisc A1-013 rotor onto the hub, aligning the lug holes. Use a wheel lug nut hand-tightened in two opposing holes to seat the rotor flat against the hub surface.
6. Reinstall the caliper bracket and caliper. Torque all fasteners to factory specification.
7. Install the wheel and torque lug nuts to factory specification in a star pattern.
8. Pump the brake pedal until firm pedal pressure is restored before moving the vehicle.
9. Perform the GiroDisc recommended bedding procedure: 3-5 moderate stops from 40 mph with cooling intervals, followed by 3-5 firmer stops from 60 mph. Allow rotors to cool completely without coming to a standstill on hot brakes.
10. Re-inspect all fasteners after the first 50 miles of normal driving.

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.