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AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/380mm)- Porsche Cayman 718 GT4 RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/380mm)- Porsche Cayman 718 GT4 RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/380mm)- Porsche Cayman 718 GT4 RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/380mm)- Porsche Cayman 718 GT4 RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/380mm)- Porsche Cayman 718 GT4 RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/380mm)- Porsche Cayman 718 GT4 RS

AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/380mm)- Porsche Cayman 718 GT4 RS

AP RACING
Ships from Supplier
Ships from Supplier
Ships from Supplier
Ships from Supplier
Ships from Supplier
SKU 13.01.10185-STD
$6,199.00 - $6,399.00
$6,199.00
$6,199.00 - $6,399.00
$6,199.00
Add Brake Pads: Standard
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Complete rear AP Racing by Essex Radi-CAL Competition Brake Kit for all variants of the Porsche Cayman 718 GT4 RS:

  • Eliminates the need to remove the caliper for pad changes
  • Retains OEM parking brake functionality
  • Saves 18 unsprung lbs. vs. OEM iron brakes and weighs almost the same as the OEM PCCB system
  • AP Racing Radi-CAL with durable, ventilated stainless steel pistons (no ceramic piston caps to break) with anti-knockback springs
  • Allows for the preservation of pricey OEM brake components
  • Huge array of brake pad options from all major pad manufacturers
  • Fits OEM 20" wheels without spacer
  • 380x32mm, 72 vane AP Racing disc fits inside popular 19" wheels
  • 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
  • Includes pad tension kit (eliminates noise) and disc burnishing at no additional cost
  • Designed to work with our Essex/AP Racing front BBK

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 5 applications
Cayman
Make Model Engine Years
Porsche 718 Cayman GT4 RS Iron disc 2022–2023
Porsche 718 Cayman GT4 RS Iron Disc 2024–2025
Porsche 718 Cayman GT4 RS with PCCB 2022–2025

Fitment data last updated: 2026-04-27

Fits 5 vehicle applications Check vehicle fitment before ordering View fitment

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