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AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9665/380mm)- Porsche 991.2 GT3 Cup
AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9665/380mm)- Porsche 991.2 GT3 Cup
AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9665/380mm)- Porsche 991.2 GT3 Cup

AP Racing by Essex Radi-CAL Competition Brake Kit (Front CP9665/380mm)- Porsche 991.2 GT3 Cup

AP RACING
Ships from Supplier
Ships from Supplier
Ships from Supplier
Ships from Supplier
SKU 13.01.10217-STD
$7,999.00 - $8,399.00
$7,999.00
$7,999.00 - $8,399.00
$7,999.00
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 991.2 GT3 Cup (2017-2020):

  • Eliminates the need to remove the caliper for pad changes
  • Direct bolt-on to OE Porsche Motorsport 991.2 Cup uprights with included spacers
  • AP Racing Radi-CAL CP9665 calipers with durable ventilated stainless steel pistons and anti-knockback springs
  • Hard anodized caliper finish that is resistant to wear and deterioration at elevated temperatures
  • 380mm x 32mm 2-piece floating 72-vane J Hook Discs with D54 radial depth
  • Innovative Spline Drive disc system further mitigates knockback and offers highly consistent pedal effort
  • Designed for: club racing, time trial, autocross, HPDE
  • Every component designed to resist the heat of extended track sessions
  • Works with standard OE master cylinder sizes
  • Includes disc burnishing at no additional cost
  • Designed to work with OEM rear brakes or our AP Racing by Essex CP9449 Competition Rear Brake Kit

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
911
Make Model Engine Years
Porsche 911 GT3 Cup 2017–2020

Fitment data last updated: 2026-04-27