Acura

Girodisc Acura NSX Rear Rotors Bring world-class braking performance to your Acura NSX with Girodisc’s lightweight two-piece rear rotors. Designed as a direct OEM replacement, these rotors reduce unsprung weight, improve cooling, and deliver consistent pedal feedback for the hybrid supercar’s advanced braking system. Engineered for Precision and Performance The Girodisc system bolts directly to the NSX’s factory calipers and hubs—no modifications required. Each rotor is built around a CNC-machined 6061-T6 aluminum hat paired with Girodisc’s proprietary high-carbon cast iron friction rings. This floating two-piece construction allows for thermal expansion without warping, ensuring smooth, consistent braking whether you’re carving through mountain roads or attacking apexes at the track. Features • Direct replacement for OEM Acura NSX rear rotors• Lightweight two-piece design reduces unsprung and rotational mass• U.S.-sourced 6061-T6 billet aluminum hats with hard anodized finish• Proprietary high-carbon cast iron rings poured and machined in the USA• Floating mount system with cadmium-plated drive pins and anti-noise washers• Curved vane internal design promotes superior airflow and cooling• Fully rebuildable—replace only the iron rings when worn• Sold/priced per pair Vehicle Fitment Acura NSX (2017–2022, all variants)Compatible with OEM Brembo rear calipers and factory braking hardware. Girodisc A2-174 Rear Rotor FAQs: Is this rotor setup compatible with the NSX’s hybrid regenerative braking system? Yes. Girodisc rotors integrate perfectly with the NSX’s factory electronics and regenerative braking calibration—no software or sensor changes needed. How much lighter are these than stock rotors? Each Girodisc rotor saves several pounds over the factory cast units, reducing unsprung weight and improving suspension response. Can I use factory brake pads with these rotors? Absolutely. Girodisc rotors are fully compatible with OEM pad shapes, or you can upgrade to performance compounds for track use. What difference will I notice on track? Expect more consistent braking during long sessions, improved modulation, and reduced fade under high-temperature conditions thanks to Girodisc’s curved vane cooling design. Unlock sharper braking response and race-proven durability with Girodisc rear rotors for the Acura NSX—engineered to perform flawlessly on road and track alike.

Acura NSX Front Rotors (Girodisc) – A1-174 Girodisc two-piece front rotors for the Acura NSX are a direct bolt-on upgrade that reduce unsprung and rotating mass, sharpen response, and improve cooling while maintaining factory brake bias and ABS performance. These rotors are compatible with cars originally equipped with iron or carbon-ceramic front rotors; note the pad shape requirement below. Pad shape note for carbon-ceramic cars For vehicles originally fitted with carbon-ceramic front rotors, you must switch to the D1405 front pad shape to use these rotors. Contact us if you need help selecting compatible pads. Features of Girodisc A1-174 Direct replacement for the OE front discs; no permanent modifications required. Two-piece construction with a US-sourced 6061-T6 aluminum hat and proprietary cast-iron disc for high thermal stability. Curved-vane internal design acts as a centrifugal pump to move cooling air through the rotor at speed. Floating mount system uses high-strength alloy steel drive pins with spring washers to allow controlled float, reduce noise when cold, and let the disc expand evenly under heat. Lower rotating and unsprung mass improves acceleration, steering feel, and suspension response. Factory brake bias and ABS calibration are preserved. Service-friendly design lets you replace only the iron rings when worn. What’s included One left and one right front rotor (sold and priced as a pair). FAQs: Acura NSX Front Rotors (Girodisc A1-174) Do these fit NSX models with carbon-ceramic front brakes? Yes. They fit both iron and carbon-ceramic applications, but carbon-ceramic cars must switch to the D1405 pad shape on the front calipers. Are any caliper spacers or brackets required? No spacers or brackets are required for installation with the factory calipers. Will these change pedal feel or ABS behavior? No. Rotor dimensions and effective radius are engineered to maintain factory bias and ABS operation while improving thermal capacity and weight. Are they noisy like some floating race rotors? The floating system uses spring washers to minimize rattle at low temperatures while still allowing thermal growth under heavy use. How do I service them later? When the friction rings wear out, you can replace just the iron rings and reuse the aluminum hats and hardware per manufacturer guidelines. Fitment and ordering Acura NSX front axle. Verify pad shape if converting from carbon-ceramic (use D1405 in front). Sold as a matched left and right pair under SKU A1-174.