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We are closed July 3rd–5th for the holiday! Orders will ship starting July 6th. Happy Independence Day!
AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9661/355mm)- Porsche 981 and 718 Boxster & Cayman
AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9661/355mm)- Porsche 981 and 718 Boxster & Cayman
AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9661/355mm)- Porsche 981 and 718 Boxster & Cayman

AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9661/355mm)- Porsche 981 and 718 Boxster & Cayman

AP RACING
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UGC 13.01.10072-STD-STD-STD
$5,349.00 - $5,824.00
$5,349.00
$5,349.00 - $5,824.00
$5,349.00
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 front AP Racing by Essex Radi-CAL Competition Brake Kit fits all variants of the Porsche 981 (2013-2016) Boxster and Cayman, except for the GT4. Also fits 718 Boxster S & Cayman S.

  • Features AP Racing CP9661 Radi-CAL six piston calipers
  • Eliminates need to remove caliper for pad change
  • Huge array of brake pad options from all major pad manufacturers
  • 355x32mm, 72 vane AP Racing disc
  • Saves 2 to 10 unsprung lbs. from nose vs. OEM S brakes depending on application
  • 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 OEM rear brakes or our Essex/AP Racing rear BBK

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 40 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 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 / GTS Iron disc 2015–2015
Porsche Boxster S / GTS with PCCB 2015–2015
Porsche Boxster S Iron disc 2013–2016
Porsche Boxster S with PCCB 2013–2016
Porsche Boxster Spyder Iron disc 2016–2016
Porsche Boxster Spyder with PCCB 2016–2016
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 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 S Iron disc 2014–2016
Porsche Cayman S with PCCB 2014–2016
Porsche Cayman with PCCB 2014–2016

Fitment data last updated: 2026-04-27