C5 Z51

AP Racing 372x34mm Replacement Ring AP Racing replacement 372x34mm J Hook rotor discs are used in many of the AP Racing brake kits. These replacement rotor ring measures 372mm x 34mm and features 72 directional cooling vanes. The AP Racing 13.05.10052 and 13.05.10053 rotor rings are directional, curved vane, heat treated and stress relieved. These are the exact AP Racing  rotor rings as CP7177-350GC and CP7177-351GC with the USA AP 13.05.10052 and 13.05.10053 part numbers. Same rings, different part part numbers. AP Racing J Hook Competition Disc Replacement Ring 372x34mm Details: Manufacturer: AP Racing Manufacturer US part number right: AP-13.05.10052 AP Racing part number right: CP7177-350GC Manufacturer US part number left: AP-13.05.10053 AP Racing part number left: CP7177-351GC Slotted face: Yes Diameter: 372mm (11.65") Thickness: 34mm (1.34") Hardware included: No Torque specs for this disc and hardware assembly: 124 lb-in 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.

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.

FITS: 1997-2004 (C5) & 2005-2013 (C6) Chevrolet Corvette with Z51 package.(Can also be used with non-Z51 cars when OEM GM Z51 Caliper brackets are retrofitted.) 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 Z51 package as follows: 1997-2004 (C5) 2005-2013 (C6) (Can also be used with non-Z51 cars when GM C6 Z51 caliper brackets are retrofitted.) REPLACEMENT ROTOR DISCS ONLY, DOES NOT INCLUDE ALUMINUM HAT This is one set of replacement rotor rings for the A1096 floating rotor set available at Discovery Parts. Replacement hardware is included and must be used when replacing rotor rings. Discovery Parts is an authorized dealer for Girodisc products and 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. Sold/priced per pair.

FITS: CHEVROLET CORVETTE C6 WITH Z51 PACKAGE (2005-2013) 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 system is an upgrade to a 2-piece steel rotor and aluminum hat combination and is a direct replacement for the OEM brake disc. The 2-piece floating disc will bolt directly to the car and work with OEM calipers perfectly. By upgrading your brakes with these lightweight high-performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Giro Disc rotors are lighter than OEM pieces. The reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. When used with Pagid or PFC performance brake pads, and Discovery Parts RF-1 brake fluid (also available from CompetitionMotorsport.com), you have 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 disc is manufactured from cast iron which is constructed in the USA and is made to the same specification with the same material used by professional racing organizations. The rotors curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. 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 as well to minimize future replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.

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. Fits Chevy Corvette C5 with Z51 Package Fits Chevy Corvette C6 with Z51 Package This Girodisc system is a direct replacement for the OE brake rotors on all C6 Corvettes equipped with the Z51 package. They will also bolt onto non-Z51 C6s and all C5s with the use of the C6 Z51 caliper brackets (which can be purchased through a GM dealer). The disc will bolt directly to the car and work with OE calipers perfectly.. The two-piece floating rotor will bolt directly to the car and work with OEM calipers perfectly. By upgrading your brakes with these lightweight, high-performance replacements (as opposed to a big brake kit), your factory brake bias is maintained as well as your ABS efficiency. Girodisc rotors are lighter than the cast iron OEM pieces. This reduction in rotational and unsprung weight allows for quicker acceleration and superior suspension response. When used with Pagid or PFC racing brake pads and Discovery Parts RF1 racing brake fluid, you have an amazing solution to brake fade, overheating, cracking and warping rotors. The central hat section of the disc is made from 6061-T6 aircraft aluminum. The disc is manufactured from cast iron, constructed in the USA and made to the same specification with the same material used by professional racing organizations. The rotors' curved-vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. The rotor and hat mount together through a floating mount system of eight to ten high-strength alloy steel drive pins manufactured by Girodisc in the USA to their own specifications; they are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining 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 springs to allow for heat expansion while eliminating the rattle and noise associated with floating rotors. The two-piece Girodisc design allows for disc-only replacement as well to minimize future replacement costs and deliver outstanding performance and cooling. Sold/Priced per pair.