23-27+ C8 Corvette Z06/Grand Sport Rear Slotted Brake Rotor Ring Set (Includes 2) - Speed by Design

Fits 2023+ Corvette C8 ( Z06 & Grand Sport Models W/O Carbon Ceramic Rotors )
RPO Code J56

Description:

Upgrade the braking performance and reduce replacement costs on your 2023+ Chevrolet C8 Corvette Z06 or 2027+ C8 Corvette Grand Sport with the Speed By Design (SBD) Rear High-Carbon Iron Brake Rotor Rings, Part Number C8Z06-2023-BR-R. Engineered specifically for vehicles equipped with the factory J56 iron brake package, these premium replacement rotor rings provide a cost-effective alternative to purchasing complete OEM brake rotor assemblies by allowing you to reuse your existing factory aluminum center hats and bobbin mounting hardware. Manufactured from premium GG15HC high-carbon cast iron, these performance brake rotor rings offer exceptional strength, durability, and consistent braking performance for both everyday driving and demanding track-day applications. Each rear rotor ring features a precision-machined, directional slotted friction surface and advanced curved internal cooling vanes designed to improve airflow compared with the factory pillar-vane rotor design. The curved vane configuration creates a centrifugal pumping effect, drawing cooling air through the rotor's internal passages to help dissipate heat during repeated heavy braking. A premium NOF GEOMET 360 corrosion-resistant coating provides additional protection against rust and oxidation, particularly within the rotor's internal cooling passages. Measuring 380mm in diameter and 34mm thick, these rear rotor rings are designed to replace the friction rings found on Genuine GM Rear Brake Rotor Part Number 86822032. Sold as a complete driver and passenger side pair, the Speed By Design Rear Brake Rotor Rings offer an excellent combination of improved cooling design, durability, and long-term maintenance savings for C8 Corvette Z06 and Grand Sport owners.

Key Features:

• Speed By Design (SBD) Part Number C8Z06-2023-BR-R
• High-Performance Rear Brake Rotor Replacement Rings
• Designed for 2023+ C8 Corvette Z06 and 2027+ C8 Corvette Grand Sport
• Specifically engineered for factory RPO Code J56 iron brake systems
• Replaces the friction rings used on Genuine GM Rear Rotor Part Number 86822032
• Premium GG15HC high-carbon cast iron construction
• Excellent strength and durability for street and track use
• 380mm diameter x 34mm thickness (15.0 x 1.34 inches)
• Directional slotted friction surfaces
• Advanced curved internal cooling vane design
• Improved rotor airflow compared with factory pillar-style cooling vanes
• Centrifugal cooling effect helps draw air through the internal rotor passages
• Designed to improve heat dissipation during repeated braking
• Helps maintain consistent braking performance under demanding conditions
• NOF GEOMET 360 corrosion-resistant coating
• Coating helps protect internal cooling vanes from corrosion and oxidation
• Precision-engineered for use with factory aluminum center hats
• Reuses existing factory rotor bobbins and mounting hardware
• Reduces replacement costs compared with purchasing complete OEM rotor assemblies
• Rear rotor ring weight: approximately 22.85 lbs per ring
• Driver and passenger side-specific directional rotor design
• Sold as a complete rear axle pair
• Suitable for high-performance street driving and track-day applications

Package Includes:

• One (1) Driver Side Rear High-Carbon Iron Brake Rotor Ring
• One (1) Passenger Side Rear High-Carbon Iron Brake Rotor Ring

Important Notes:

• Fits 2023+ Chevrolet C8 Corvette Z06 models equipped with RPO Code J56
• Fits 2027+ Chevrolet C8 Corvette Grand Sport models equipped with RPO Code J56
• REQUIRES FACTORY RPO CODE J56 – IRON BRAKE PACKAGE
• DOES NOT FIT VEHICLES EQUIPPED WITH RPO CODE J58 – CARBON CERAMIC BRAKES
• Designed for the factory 380mm x 34mm rear iron brake rotor configuration
• Replaces the friction rings used on OEM GM Rear Rotor Part Number 86822032
• Sold as a pair of two (2) REAR rotor rings only
• These are replacement rotor rings and are NOT complete brake rotor assemblies
• FACTORY ALUMINUM CENTER HATS ARE NOT INCLUDED
• FACTORY BOBBIN HARDWARE IS NOT INCLUDED
• Existing OEM aluminum center hats and bobbin mounting hardware must be reused
• Factory center hats and mounting hardware must be inspected for wear, damage, and serviceability before installation
• These rings are intended for use with compatible factory center hats; aftermarket center hat compatibility is not guaranteed
• Front brake rotor rings are sold separately under Part Number C8Z06-2023-BR-F
• Brake pads are NOT included
• Compatible brake pads should be selected according to intended street or track use
• Proper installation and fastening of the rotor rings to the factory center hats are critical for safe operation
• Professional installation by a qualified brake technician is strongly recommended
• Follow the manufacturer's installation procedures and torque specifications
• Brake rotor and pad bedding procedures should be completed as recommended by the applicable manufacturers
• Verify proper rotor clearance, installation, and brake operation before driving
• Manufacturer-listed rotor ring weight is approximately 22.85 lbs per rear ring
• These are high-carbon iron brake rotor rings and are not carbon-ceramic components