Description Complete rear AP Racing by Essex Radi-CAL Competition Brake Kit for all C5 Corvettes. While the standard Essex Designed AP Racing Competition Brake Kits remain an excellent choice for chasing lap times, the Radi-CAL Competition Brake Kits bring the bleeding edge of racing brake technology to the common enthusiast. These systems include all of the standard features of our Competition BBK’s, but leverage AP Racing’s Pro5000R Radi-CAL’s to increase stiffness, lower mass, and optimize cooling and wheel fitment. The key benefits of the Radi-CAL design are: Massive Stiffness Increase- A 30 % increase in both static and dynamic stiffness allows for far less deflection under load, which means superior pedal feel & modulation, more even pad wear, and longer caliper service life. Considerable Mass Reduction- Removing all extraneous caliper mass lowers the caliper weight, despite the huge stiffness increases. Optimized Airflow- Air moves around and through the caliper more efficiently, providing superior heat evacuation. Efficient Packaging- The wide, asymmetric caliper profile and internal porting allows the caliper to fit into tighter spaces. This is the exact AP rear brake system that After Dark Speed uses on both our C5 Z06 and C6 Z06 Time-Attack cars. Retains OEM parking brake functionality Features AP Racing CP9449 Radi-CAL four piston calipers 340x28mm 48 vane heavy duty AP Racing discs No weight penalty vs. OEM rear brakes, despite significantly larger components Every component designed to resist the heat of extended track sessions Pistons sized properly to allow for seamless integration with OEM master cylinder and ABS system Designed to work with any of our front C5 Essex/AP Racing Competition BBK’s Durable anodized aluminum calipers with stainless steel pistons and anti-knockback springs Lightweight, anodized aluminum caliper mounting brackets Spiegler stainless steel brake lines included All associated mounting bolts, hardware, and detailed installation instructions Available in either gray hard anodize finish or Electroless Nickel Plated (ENP) finish. Standard kit comes with no brake pads or select a Ferodo pad option. Call for help & recommendations on proper pad compound selection for your specific car & intended use. Optional Pad Tension Kit available to reduce pad rattle.
