23-27+ C8 Corvette Z06/Grand Sport Front & Rear Slotted Brake Rotor Ring Set (Includes 4) - Speed by Design

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

Description:

Upgrade your complete braking system while reducing long-term maintenance costs with the Speed By Design (SBD) Front and Rear High-Carbon Iron Brake Rotor Ring Kit, Part Number C8Z06-2023-BR-FR, designed for the 2023+ Chevrolet C8 Corvette Z06 and 2027+ C8 Corvette Grand Sport equipped with the factory J56 iron brake package. This comprehensive four-wheel rotor ring replacement kit combines the Speed By Design Front Rotor Rings (C8Z06-2023-BR-F) and Rear Rotor Rings (C8Z06-2023-BR-R), providing a complete replacement of all four brake rotor friction surfaces while allowing you to reuse your existing factory aluminum center hats and bobbin mounting hardware. Manufactured from premium GG15HC high-carbon cast iron, these performance rotor rings are engineered to provide excellent strength, durability, and consistent braking performance for everyday driving, spirited street use, and demanding track-day applications. Each rotor features a precision-machined directional slotted friction surface and advanced curved internal cooling vanes designed to improve airflow and heat dissipation compared with the factory pillar-vane configuration. The curved vane design creates a centrifugal pumping effect, drawing cooling air through the rotor's internal passages to help manage temperatures during repeated heavy braking. A premium NOF GEOMET 360 corrosion-resistant coating provides additional protection against rust and oxidation, including within the internal cooling passages. Featuring 370mm x 34mm front rotor rings and 380mm x 34mm rear rotor rings, this complete kit replaces the friction rings found on Genuine GM Front Brake Rotor Part Number 84041944 and Rear Brake Rotor Part Number 86822032. Offering an economical alternative to replacing all four complete factory rotor assemblies, the Speed By Design Front and Rear Brake Rotor Ring Kit delivers an excellent combination of performance-oriented cooling, durability, and maintenance savings for C8 Corvette Z06 and Grand Sport owners.

Just Need Fronts or Rears? We've got you covered! 

• Fronts
• Rears

Key Features:

• Speed By Design (SBD) Part Number C8Z06-2023-BR-FR
• Complete Front and Rear Performance Brake Rotor Ring Kit
• Includes Front Rotor Ring Set C8Z06-2023-BR-F
• Includes Rear Rotor Ring Set C8Z06-2023-BR-R
• Four (4) replacement rotor rings for all four wheels
• Designed for 2023+ C8 Corvette Z06 and 2027+ C8 Corvette Grand Sport
• Specifically engineered for factory RPO Code J56 iron brake systems
• Premium GG15HC high-carbon cast iron construction
• Excellent strength and durability for street and track use
• Front rotor dimensions: 370mm diameter x 34mm thickness
• Rear rotor dimensions: 380mm diameter x 34mm thickness
• Directional slotted friction surfaces
• Advanced curved internal cooling vane design
• Improved internal airflow compared with factory pillar-style cooling vanes
• Centrifugal cooling effect helps draw air through the rotor passages
• Designed to improve heat dissipation during repeated heavy braking
• Helps maintain consistent braking performance under demanding conditions
• NOF GEOMET 360 corrosion-resistant coating
• Coating helps protect internal cooling vanes against rust and oxidation
• Precision-engineered for compatibility with factory aluminum center hats
• Reuses existing factory rotor bobbins and mounting hardware
• Reduces replacement costs compared with purchasing four complete OEM brake rotors
• Front rotor ring weight: approximately 20.20 lbs each
• Rear rotor ring weight: approximately 22.85 lbs each
• Driver and passenger side-specific directional rotor design
• Complete four-wheel rotor friction ring replacement package

Package Includes:

• One (1) Driver Side Front High-Carbon Iron Brake Rotor Ring
• One (1) Passenger Side Front High-Carbon Iron Brake Rotor Ring
• 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
• Does NOT fit C8 Corvette Z06 models equipped with the factory Z07 carbon-ceramic brake package
• Includes four (4) rotor rings: two front and two rear
• Front rotor rings measure 370mm x 34mm
• Rear rotor rings measure 380mm x 34mm
• Replaces the friction rings used on OEM GM Front Brake Rotor Part Number 84041944
• Replaces the friction rings used on OEM GM Rear Brake Rotor Part Number 86822032
• 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
• All factory center hats and mounting hardware must be inspected for wear, damage, and serviceability before installation
• Replacement mounting hardware must be sourced separately if existing components are damaged or unsuitable for reuse
• Designed for compatible factory center hats; aftermarket center hat compatibility is not guaranteed
• Front rotor rings are available separately under Part Number C8Z06-2023-BR-F
• Rear rotor rings are available separately under Part Number C8Z06-2023-BR-R
• Brake pads are NOT included
• Compatible brake pads should be selected according to the vehicle's 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
• Proper brake rotor and pad bedding procedures should be completed before demanding driving
• Verify rotor clearances, mounting hardware security, and brake operation before driving
• These are high-carbon iron brake rotor rings and are NOT carbon-ceramic components