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AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9450/340mm)- Porsche 718 GTS 4.0 Cayman & Boxster
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9450/340mm)- Porsche 718 GTS 4.0 Cayman & Boxster
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9450/340mm)- Porsche 718 GTS 4.0 Cayman & Boxster

AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9450/340mm)- Porsche 718 GTS 4.0 Cayman & Boxster

AP RACING
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SKU 13.01.10165-ENP-STD-STD-STD
$4,849.00 - $5,464.00
$4,849.00
$4,849.00 - $5,464.00
$4,849.00
Add Brake Pads: Standard
Add Pad Tension Kit (reduces pad rattle): Standard
Discs Pre-burnished/bedded in Ferodo Pad Compound (+2 to 5 Day lead time): Standard
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We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

Complete rear AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9450/340mm) for the Porsche 718 GTS 4.0 Cayman & Boxster.

  • Retains OEM parking brake functionality
  • Shaves approximately 16 lbs. of unsprung weight from rear of the car
  • Features AP Racing CP9450 Radi-CAL four piston calipers
  • 340x28mm 48 vane heavy duty AP Racing discs
  • 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 complement our front 718 GTS 4.0 Essex/AP Racing Radi-CAL Competition BBK

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 6 applications
Boxster
Make Model Engine Years
Porsche 718 Boxster GTS 4.0 Iron disc 2021–2023
Porsche 718 Boxster GTS 4.0 Iron Disc 2024–2025
Porsche 718 Boxster GTS 4.0 with PCCB 2021–2025
Cayman
Make Model Engine Years
Porsche 718 Cayman GTS 4.0 Iron disc 2021–2023
Porsche 718 Cayman GTS 4.0 Iron Disc 2024–2025
Porsche 718 Cayman GTS 4.0 with PCCB 2021–2025

Fitment data last updated: 2026-04-27