Brake Rotors

AP Racing by Essex 2-piece Spline Drive Competition J Hook rear disc pair for Porsche 911 (991) GT3 Cup: 380mm x 30mm (14.96" x 1.18") 72 Vane, D47 radial depth Innovative Spline Drive disc system derived from professional racing applications Designed for: club racing, time trial, autocross, HPDE Works with OE calipers, no modifications required Ultralight 2-piece fully-floating AP Racing J Hook disc with anodized billet aluminum hat

AP Racing by Essex 2-piece Spline Drive Competition J Hook rear disc pair for Porsche 981 / 718 (982) Cayman GT4 Clubsport: 380mm x 30mm (14.96" x 1.18") 72 Vane, D47 radial depth Innovative Spline Drive disc system derived from professional racing applications Designed for: club racing, time trial, autocross, HPDE Works with OE calipers, no modifications required Ultralight 2-piece fully-floating AP Racing J Hook disc with anodized billet aluminum hat

AP Racing 2-piece J Hook Disc Front Rotor Kit 355x32mm Measuring 355mm x 35mm the AP Racing 13.05.10066 and 13.05.10067 are J Hook Competition Discs has a 54mm annulus with 72 directional cooling vanes used on the popular AP 13.01.10024 AP Racing C5 Corvette Front Six Piston Competition Brake Kit. AP Racing 2-piece J Hook Disc Front Rotor Kit 355x32mm Details: Manufacturer: AP Racing Manufacturer part number right side: 13.05.10066 Previous part number right side: 13.05.10002 Manufacturer part number left side: 13.05.10067 Previous part number left side: 13.05.10003 Slotted face: Yes Diameter: 355mm Thickness: 32mm Annulus radial depth: D54 Aluminum hat included: No Rotor harwdare included: Nos 14.0" x1.26" (355mm x 32mm), 72 Vane Significant unsprung weight reduction (over 3 lbs. per side) Much wider air gap and twice as many full internal cooling vanes reduce pad wear and brake fluid temps Fully floating vs. standard fixed-hat design= less coning, cracking, vibration/judder Aircraft nuts eliminate hassle of safety wire Crack-resistant disc metallurgy specifically designed to offer a long service life Anti-knockback disc attachment hardware reduces pad knockback through S-turns Common Fitment: AP Racing C5 Corvette Front Six Piston Competition Brake Kit Iron Disc Benefits So what can AP Racing J Hook iron discs do for a car previously equipped with carbon ceramic discs? Increased airflow and slower heat transfer to other brake components- AP Racing J Hook discs have a unique, high-count vane design that promotes airflow, heat evacuation, and rapid cooling. They don't rely on a large surface area to cool via radiation. The iron discs will move more air than your carbon ceramic's, and as a result they won't heat your brake pads, caliper pistons, and brake fluid up as quickly. You'll be able to run longer sessions without brake fade, and you'll enjoy the confidence that comes along with them. They'll also make any brake ducts that you have on the car more effective and useful. Huge range of compatible brake pad compounds- Iron discs will open up a much greater range of available brake pads. You'll be able to achieve a different feel, and tailor your brake setup depending on your needs and environment, whether that is running an AutoX or the most demanding racetrack in your area. You'll also likely be paying less per brake pad set than you were previously, and your pads will last longer. Inexpensive spare discs- You'll no longer have to spend thousands of dollars when it's time to replace your discs. AP Racing J Hook's typically only cost $400-600 per iron disc ring, so you won't have to stress about anything happening to them. They're inexpensive enough that you can always keep a spare set on hand, so you won't have to worry about any brake-related downtime when you're out at the track. Durability- Iron discs can take a beating. You can stash your spares in your race trailer, and you won't have to worry about handling them, covering them, dinging them, or chipping them when changing your wheels. As you can see, although iron discs do come with a slight weight penalty, they're still the smart choice if you run your car hard on the racetrack. They're the obvious solution that has been proven countless times on tracks around the world, at all levels of motorsport. Among iron disc choices, there are none better than AP Racing J Hooks. AP Racing J Hook Discs are the epitome of endurance racing components. They will hold up extremely well to any abuse you plan to throw at them. These discs have been proven time and again in professional racing, winning many races and championships (SRO, IMSA, WEC, Rolex, etc.). Two-piece Floating Design with Aluminum Hat As is the case with most metal, iron brake discs grow substantially when heated. As it is heated, a disc expands radially, increasing in diameter and circumference. One-piece disc designs run into problems when this occurs. Look at the picture below and imagine the disc is being heated on the track. As the disc expands, the outer edges of the disc are pulling away from the center of the disc, but there are no built-in provisions to allow for that expansion. The edges of the disc therefore pull, lift, and distort, which is called coning. Now imagine that disc vertical on the car, running in your caliper. Coning directly impacts the brake pads’ contact with the disc, leading to uneven wear and tapering, and even a long brake pedal. Two-piece discs on the other hand, compensate for the expansion of the disc as it heats. This is accomplished by building ‘float’ into either the disc itself, or the disc hat/bell. In this case, the float is in the disc. If you look closely at the picture below, you can see that the mounting holes for the hat attachment bobbins are not round. They are an oblong shape. These channels allow the hat mounting hardware to slide as the disc is heated and expands, allowing the disc to run true in the caliper without distortion. That means less distortion, stress cracks, and pad taper.

C8 Corvette Z06 Girodisc A1-319 Front Brake Rotors (OEM Steel Rotors) Fitment: Chevrolet Corvette C8 Z06 Front with Factory Cast Iron Rotors For the Corvette C8 Z06 with factory Z07 carbon ceramic rotors, see Girodisc A1-320. This Girodisc two-piece floating rotor system is a direct replacement for the OEM cast iron brake rotors on the C8 Z06 Corvette. The Girodisc two-piece rotors will bolt directly to the C8 Z06 and work perfectly with OEM calipers. By upgrading your C8 Z06 brakes to these lightweight, high-performance replacements -- as opposed to a big brake kit -- your factory brake bias is maintained as well as your ABS efficiency. These Girodisc rotors are lighter than OEM pieces, reducing rotational and unsprung mass for quicker acceleration, sharper suspension response, and better brake feel. When used with Pagid or PFC high-performance brake pads and RF1 racing brake fluid, this Girodisc rotor system gives you an amazing solution to overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The rotor itself is manufactured from a proprietary cast iron, domestically sourced and made to the same specification used by professional racing organizations. The rotor's curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. The rotor and hat are joined by a floating mount system utilizing 8-10 high strength alloy steel drive pins manufactured by Girodisc in-house, then cadmium plated for corrosion resistance. The alloy drive pins transfer breaking load while maintaining axial and radial float between the disc rotor and hat. The pins are secured by Grade-12 cap screws and hardened washers, mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise typically associated with floating rotors. The two-piece Girodisc design allows for rotor-ring replacement as well, minimizing future replacement costs while delivering outstanding performance and cooling. Priced/sold per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

C8 Corvette Z06 Girodisc A1-320 Front Rotor Conversion (for Z07 CCB) Upgrade your C8 Z06’s braking system with the Girodisc A1-320 Front Rotor Conversion—designed specifically for Z07-equipped cars with carbon ceramic brakes. This 2-piece rotor kit bolts right up to the OEM calipers and replaces the factory carbon ceramics with high-performance iron rotors for improved consistency and cost-effectiveness on the track. Direct Fitment for Z07 Carbon Ceramic Brake Cars Fitment: Chevrolet Corvette C8 Z06 with factory Z07 CCB rotors This Girodisc system is engineered as a direct swap for the factory carbon ceramic front rotors on Z07-package C8 Z06 Corvettes. It retains the OEM calipers but uses a different pad shape (D1405), which is the same shape found on non-Z07 C8 Z06 models. The rotor rings are crafted from Girodisc’s proprietary high-carbon steel alloy, offering outstanding thermal stability and longevity. With 72 curved internal vanes, these rotors act as centrifugal air pumps, pulling in cool air through the hub to fight brake fade during aggressive use. The aluminum rotor hats are CNC-machined from 6061-T6 and anodized black for long-term corrosion resistance. The floating rotor design uses cadmium-plated drive pins, spring clips, and washers to allow axial float—ensuring race-ready performance while remaining quiet enough for the street. When the rotors reach minimum thickness (34mm) or if a crack extends to the edge, simply replace the rings (D1-320) and reuse the hats—keeping running costs low over time. Sold and priced per pair. Girodisc A1-320 Rotor Conversion Features: Direct replacement for Z07 carbon ceramic front rotors High-carbon alloy rotor rings resist cracking and heat cycling Curved vane design optimizes airflow for superior cooling 6061-T6 aluminum hats are lightweight and anodized for durability Floating two-piece construction reduces weight and vibration Compatible with D1405 pad shape used on standard C8 Z06 Girodisc A1-320 Rotor FAQs: Is this rotor kit track-proven? Yes, it has been tested under aggressive racing conditions and proven to hold up against repeated heat cycles and heavy use. Is professional installation required? While it’s not mandatory, we strongly recommend professional installation for optimal safety and performance. Will this fit my non-Z07 C8 Z06? No, this kit is specifically designed for Z06 models equipped with the factory Z07 carbon ceramic brakes. It uses a different pad shape and rotor size. Can I return this if it doesn’t fit? Yes, we accept returns on unused items in original packaging. Contact us for assistance if you're unsure of compatibility. Whether you're prepping your Z06 for heavy track use or want a more economical alternative to carbon ceramics, the Girodisc A1-320 rotor conversion delivers the perfect combination of durability, performance, and value.

C8 Corvette Z06 Girodisc A2-319 Rear Rotors (for OEM Steel & Z07 CCB) Fitment: Chevrolet Corvette C8 Z06 This Girodisc two-piece rotor set is a direct replacement for the rear rotors on the Chevrolet Corvette C8 Z06 with either the factory cast iron rotors or the Z07 carbon ceramic rotors1. Girodisc two-piece, fully floating rotor assemblies help shed unsprung weight and rotating mass from the front axle of the C8 Z06 with iron rotors, while being far more durable in track use than the fragile and very expensive Z07 carbon ceramic rotors. American Made With Specially Formulated Materials Girodisc rotor rings are machined from a proprietary casting made of high-carbon steel formulated to Girodisc’s specifications. This superior metallurgy results in a rotor that holds up better, and the 72 curved vanes act as a centrifugal pump pulling air in through the hub to effectively cool the rotors under hard use. The two-piece design means the reusable hat which can be attached to new rotor rings (part number D2-319) when the latter need to be replaced. All major components including the hats, rotor rings, and drive pins are manufactured in-house at the Girodisc facility in Bellingham, WA, from domestically-sourced materials. The hat is made from 6061-T6 aluminum and coated in a black anodized finish. The drive pins are made from a high-strength steel alloy and cadmium-plated for corrosion resistance. All rotors are assembled with spring clips and Belleville washers for race-ready float while also being street-friendly with no noise from loose hardware. The minimum thickness at which we recommend replacing these rings is 32mm. We also recommend replacing them if a crack leads to the edge of the ring. Sold and priced per pair. 1 Note: when replacing factory Z07 carbon ceramic rotors with this Girodisc iron rotor kit, you will need to choose a rear brake pad shape for the factory iron-rotor C8 Z06. If you would like help choosing rear pads, give us a call at (888) 748-7223 any time! Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

CALPIER REBUILD KIT FOR ALFA GUILIA CCM FRONT 28mm/32mm/38mm GiroDisc CCRK1-209 front caliper rebuild kit for Alfa Guilia CCM front caliper with 28mm/32mm/38mm seals. Track days can be especially hard on the piston seals and dust boots in your brake calipers. Heat, in particular, will do a number on them. (Titanium heat shields behind your pads can help with that.) This kit is put together from the highest-quality components to rebuild a brake caliper back to like-new condition. One kit is required per caliper (we suggest doing them both as long as you're doing it). Once you rebuild them, get the Ti heat shields as well and lengthen the interval between rebuilds. The shields and seals are available as a kit for convenience (and a bit of savings). We only source superior quality brake components (brakes for track use are serious business); some kits don't take it as seriously. Any questions give us a call, we're happy to help!

FITS: CHEVROLET CORVETTE WITH Z06 PACKAGE  REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. Discovery Parts is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country.  We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.   The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

FITS: CHEVROLET CORVETTE WITH Z06 PACKAGE (2023-) REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. Discovery Parts is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country.  We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.   The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

D1-001 GiroDisc Replacement Rotors Fitment: Ferrari F430 REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT. Need new rings for the Girodisc two-piece rotors on your Ferrai F430 or 360 Modena?  We've got them.  Rings come complete with all-new hardware and full instructions for re-assembly.Sold/priced per pair.

D1-002 GiroDisc Replacement Rotors FITS: FERRARI 348/355 REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT. is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country.  We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.   >The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

D1-007 GiroDisc Replacement Rotors REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.   The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

D1-008 GiroDisc Replacement Rotors FITS: MITSUBISHI EVO 6/7/8/9 REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country.  We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.   The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.

D1-012 GiroDisc BMW E46 M3 Front Replacement Rings Get your braking performance back on point with the GiroDisc D1-012 front rotor replacement rings for the BMW E46 M3. Designed to work seamlessly with your existing GiroDisc 2-piece rotor hats, these high-performance rings deliver the same stopping power and heat resistance you expect—without replacing the entire assembly. Direct Replacement Rotor Rings for Track-Ready Performance FITMENT: BMW E46 M3 (with GiroDisc A1-012 front rotor kit) If you’ve already upgraded your E46 M3 with GiroDisc front rotors, these D1-012 rings are all you need to restore full braking capability. They reuse your existing aluminum rotor hats and hardware, making the replacement process quick, cost-effective, and track-ready. Crafted from GiroDisc’s proprietary high-carbon alloy, these rotor rings offer excellent thermal capacity and crack resistance under extreme braking loads. The curved vane design enhances airflow through the disc, improving cooling and reducing fade during repeated hard stops. Each set of rings comes pre-drilled and slotted, ready to install using your current GiroDisc floating hardware system. Whether you're daily driving or heading to the next HPDE event, these rings are built to handle the heat. Sold and priced per pair. D1-012 Replacement Rotor Ring Features: Designed for reuse with GiroDisc A1-012 front rotor hats High-carbon cast iron with proprietary metallurgy Curved vanes for efficient cooling and fade resistance Fully slotted to maintain pad bite and reduce glazing Cost-effective solution for ongoing rotor maintenance Made in the USA from premium domestic materials D1-012 Replacement Rotor Ring FAQs: Will these fit OEM rotors or other brands? No, these are designed specifically to replace worn rings on the GiroDisc A1-012 2-piece rotor system. Do they come with hats or hardware? No, this listing includes only the replacement rings. Reuse your existing GiroDisc hats and hardware. Can I install these myself? If you're comfortable with brake system work, yes. Otherwise, professional installation is recommended to ensure proper float and torque specs. Are these suitable for racing? Absolutely. They’re designed to withstand repeated high-temperature cycles and aggressive braking at the track. When it’s time to refresh your E46 M3’s braking system, the GiroDisc D1-012 replacement rings are the smart, track-proven choice.

D1-015 GiroDisc Replacement Rotors FITS: FERRARI 360 CHALLENGE REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT. is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country.  We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.   The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

D1-023 GiroDisc Replacement Rotors REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT. is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country.  We ship most products same or next business day to ensure we meet your delivery deadline. The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.   The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance.  The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat.  The pins are secured by grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair. Features: • Built for racing reliability and consistent performance • Compatible with demanding track environments • Designed for perfect fit and easy installation FAQs: Is this part track-proven? Yes, it has been tested extensively under racing conditions. Does it require professional installation? While not required, professional installation is recommended for best performance. Will this fit my vehicle? Please refer to the fitment guide or contact us to confirm compatibility. Can I return this if it doesn’t fit? Yes, as long as it’s unused and in original packaging.