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AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9449/380mm)- Porsche 991 GT3/3RS/2RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9449/380mm)- Porsche 991 GT3/3RS/2RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9449/380mm)- Porsche 991 GT3/3RS/2RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9449/380mm)- Porsche 991 GT3/3RS/2RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9449/380mm)- Porsche 991 GT3/3RS/2RS
AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9449/380mm)- Porsche 991 GT3/3RS/2RS

AP Racing by Essex Radi-CAL Competition Brake Kit (Rear CP9449/380mm)- Porsche 991 GT3/3RS/2RS

AP RACING
Ships from Supplier
Ships from Supplier
Ships from Supplier
Ships from Supplier
Ships from Supplier
UGC 13.01.10074-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 991 GT3/3RS/2RS:

  • 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 14 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

Fitment data last updated: 2026-04-27

Fits 14 vehicle applications Check vehicle fitment before ordering View fitment

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