AP Racing Heavy Duty J Hook Two-piece Endurance Racing Discs for C7 Corvette Stingray Z51 (Rear PAIR)

Your Price: $1,298.00
Part Number: 3822
Availability: In Stock

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13.31" x1.02" (338mm x 26mm) Heavy Duty, 72 Vane, D47, J Hook Racing Brake Disc (rear pair)

  • Designed for: Club racing, time trial, autoX, HPDE
  • Works with OEM rear C7 Corvette Stingray Z51 calipers, no modifications required
  • Fully floating, anodized billet aluminum hat with float control/anti-rattle clips
  • Huge increase in airflow, cooling capacity, and durability vs. OEM discs
  • Lightweight at only 15.4 lbs. per disc(about 3 pounds less each vs. stock)

Compared to previous generations of Corvettes, GM definitely took a step forward with the brake design on the C7 Stingray platform.  That said, the brake components were still designed primarily with road manners in mind.  As you'll see below, there is a considerable amount of room for improvement if you plan to run your car hard on the racetrack.

The OEM Stingray Z51 discs have a few major impediments that prevent them from working optimally on a racetrack:

  • Pillar internal vane design
  • Narrow/partially obstructed air gap
  • Limited airflow to outer disc face
  • Dual-cast construction
  • Relatively low thermal mass given the platform's performance potential

A proper racing disc design differs considerably from the OEM Z51 disc design, and will operate with far more efficiency in a racetrack environment.  Despite having the same overall dimensions as the OEM Z51 discs, AP Racing's Heavy Duty J Hook Discs provide superior cooling, less judder, fewer cracks, and an increased service life vs. OEM and competing discs of comparable size.  AP Racing J Hook discs are the epitome of endurance racing components, and have been proven time and again in professional racing, winning many races and championships (ALMS, Rolex, Grand Am, etc.).  They will certainly stand up to any abuse that you throw at them.

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