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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 2-piece Spline Drive Competition J Hook Disc Pair (Rear 380x30mm)- Porsche 911 991 GT3 Cup
AP Racing by Essex 2-piece Spline Drive Competition J Hook Disc Pair (Rear 380x30mm)- Porsche 911 991 GT3 Cup
AP Racing by Essex 2-piece Spline Drive Competition J Hook Disc Pair (Rear 380x30mm)- Porsche 911 991 GT3 Cup

AP Racing by Essex 2-piece Spline Drive Competition J Hook Disc Pair (Rear 380x30mm)- Porsche 911 991 GT3 Cup

AP RACING
Ships from Supplier
Ships from Supplier
SKU 13.01.20047-STD
$2,599.00 - $2,749.00
$2,599.00
$2,599.00 - $2,749.00
$2,599.00
Disc Burnishing: 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.

AP Racing by Essex 2-piece Spline Drive Competition J Hook rear disc pair for Porsche 911 (991) GT3 Cup:

  • 380mm x 30mm (14.96" x 1.18") 72 Vane, D47 radial depth
  • Innovative Spline Drive disc system derived from professional racing applications
  • Designed for: club racing, time trial, autocross, HPDE
  • Works with OE calipers, no modifications required
  • Ultralight 2-piece fully-floating AP Racing J Hook disc with anodized billet aluminum hat

***For use with original 991 PFC rear caliper only. Not compatible with 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 2013–2020

Fitment data last updated: 2026-04-27