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AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Front CP9661/394mm)- Porsche 991 GT3/3RS/2RS, Cayman 718 GT4 RS
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Front CP9661/394mm)- Porsche 991 GT3/3RS/2RS, Cayman 718 GT4 RS
AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Front CP9661/394mm)- Porsche 991 GT3/3RS/2RS, Cayman 718 GT4 RS

AP Racing by Essex Radi-CAL ENP Competition Brake Kit (Front CP9661/394mm)- Porsche 991 GT3/3RS/2RS, Cayman 718 GT4 RS

AP RACING
Ships from Supplier
Ships from Supplier
Ships from Supplier
Ships from Supplier
Ships from Supplier
SKU 13.01.10073-ENP-STD
$7,349.00 - $7,774.00
$7,349.00
$7,349.00 - $7,774.00
$7,349.00
Add Brake Pads: 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 for the Porsche 991 GT3/3RS/2RS and Cayman 718 GT4 RS:

  • Eliminates the need to remove the caliper for pad changes
  • Saves 15 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
  • Clears OEM 20" wheels without a spacer
  • 394x34mm, 84 vane AP Racing disc fits inside many 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 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 19 applications
911
Make Model Engine Years
Porsche 911 GT2RS PCCB with Iron Replacement 2018–2019
Porsche 911 GT2RS with PCCB 2018–2019
Porsche 911 GT3 Iron disc 2014–2017
Porsche 911 GT3 PCCB with Iron Replacement 2014–2017
Porsche 911 GT3 with PCCB 2014–2017
Porsche 911 GT3, GT3 RS Iron disc 2016–2016
Porsche 911 GT3, GT3 RS with PCCB 2016–2016
Porsche 911 GT3, GT3RS Iron disc 2019–2019
Porsche 911 GT3, GT3RS Iron Disc 2018–2018
Porsche 911 GT3, GT3RS PCCB with Iron Replacement 2016–2019
Porsche 911 GT3, GT3RS with PCCB 2018–2019
Porsche 911 R Iron disc 2016–2016
Porsche 911 R PCCB with Iron Replacement 2016–2016
Porsche 911 R with PCCB 2016–2016
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