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AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9451/340mm)- Porsche 987, 981, 718 Boxster & Cayman
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9451/340mm)- Porsche 987, 981, 718 Boxster & Cayman
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9451/340mm)- Porsche 987, 981, 718 Boxster & Cayman
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9451/340mm)- Porsche 987, 981, 718 Boxster & Cayman
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9451/340mm)- Porsche 987, 981, 718 Boxster & Cayman
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9451/340mm)- Porsche 987, 981, 718 Boxster & Cayman

AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Rear CP9451/340mm)- Porsche 987, 981, 718 Boxster & Cayman

AP RACING
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SKU 13.01.10055-ENP-STD-STD-STD
$5,049.00 - $5,464.00
$5,049.00
$5,049.00 - $5,464.00
$5,049.00
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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Complete rear AP Racing by Essex Radi-CAL Competition Brake Kit in ENP (Electroless Nickel Plated) finish. Fits Porsche 987 (2005-2011) Boxster S & Cayman S, all 981 (2013-2015) Boxster and Cayman, except for GT4, and 718 Cayman S & Boxster S:

  • Simple pad change with one bolt, no caliper removal required
  • Retains OEM parking brake functionality
  • Jewel-like ENP Caliper finish is incredibly durable and easy to clean
  • Eliminates unsprung weight from rear of the car
  • Features AP Racing CP9451 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 986/987 Front Essex/AP Racing Radi-CAL Competition BBKs

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 55 applications
Boxster
Make Model Engine Years
Porsche 718 Boxster GTS Iron disc 2018–2019
Porsche 718 Boxster GTS with PCCB 2018–2019
Porsche 718 Boxster Iron disc 2017–2023
Porsche 718 Boxster Iron Disc 2021–2025
Porsche 718 Boxster S Iron disc 2017–2023
Porsche 718 Boxster S Iron Disc 2024–2025
Porsche 718 Boxster S with PCCB 2017–2025
Porsche 718 Boxster T Iron disc 2020–2023
Porsche 718 Boxster T with PCCB 2020–2023
Porsche 718 Boxster with PCCB 2017–2025
Porsche Boxster 2005–2011
Porsche Boxster 987, All 2012–2012
Porsche Boxster Black Edition Iron disc 2016–2016
Porsche Boxster Black Edition with PCCB 2016–2016
Porsche Boxster GTS Iron disc 2014–2016
Porsche Boxster GTS with PCCB 2014–2016
Porsche Boxster Iron disc 2015–2016
Porsche Boxster Iron Disc 2013–2014
Porsche Boxster S 2005–2005
Porsche Boxster S / GTS Iron disc 2015–2015
Porsche Boxster S / GTS with PCCB 2015–2015
Porsche Boxster S 987, Iron disc 2012–2012
Porsche Boxster S 987, with PCCB 2012–2012
Porsche Boxster S Iron disc 2006–2016
Porsche Boxster S Iron Disc 2011–2011
Porsche Boxster S with PCCB 2009–2016
Porsche Boxster Spyder 987, Iron disc 2012–2012
Porsche Boxster Spyder 987, with PCCB 2012–2012
Porsche Boxster Spyder Iron disc 2011–2016
Porsche Boxster Spyder with PCCB 2011–2016
Porsche Boxster with PCCB 2013–2016
Cayman
Make Model Engine Years
Porsche 718 Cayman GTS Iron disc 2018–2019
Porsche 718 Cayman GTS with PCCB 2018–2019
Porsche 718 Cayman Iron disc 2017–2023
Porsche 718 Cayman Iron Disc 2024–2025
Porsche 718 Cayman S Iron disc 2017–2023
Porsche 718 Cayman S Iron Disc 2024–2025
Porsche 718 Cayman S with PCCB 2017–2025
Porsche 718 Cayman T Iron disc 2020–2023
Porsche 718 Cayman T with PCCB 2020–2023
Porsche 718 Cayman with PCCB 2017–2025
Porsche Cayman 2007–2011
Porsche Cayman 987, All 2012–2012
Porsche Cayman GTS Iron disc 2014–2016
Porsche Cayman GTS with PCCB 2014–2016
Porsche Cayman Iron disc 2015–2016
Porsche Cayman Iron Disc 2014–2014
Porsche Cayman R Iron Disc 2011–2012
Porsche Cayman R with PCCB 2011–2012
Porsche Cayman S 987, Iron disc 2012–2012
Porsche Cayman S 987, with PCCB 2012–2012
Porsche Cayman S Iron disc 2006–2016
Porsche Cayman S Iron Disc 2011–2011
Porsche Cayman S with PCCB 2007–2016
Porsche Cayman with PCCB 2014–2016

Fitment data last updated: 2026-04-27

Fits 55 vehicle applications Check vehicle fitment before ordering View fitment

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