AP Racing's part number:

• Disc: CP7177-350CG/CP7177-351GC   
• Caliper: CP9668-2S7L/CP9668-3S7L, 6 pot, ENP

Complete front ENP Finish (Electroless Nickel Plated) AP Racing by Essex Radi-CAL Competition Brake Kit for the Toyota GR Supra:

• Features AP Racing CP9668 Radi-CAL calipers
• Jewel-like ENP caliper finish is incredibly durable and easy to clean
• 372x34mm 72 vane AP Racing J Hook Discs
• Saves 23 unsprung lbs. from nose vs. OEM brakes!
• Clears the OEM Supra wheels without a wheel spacer
• Will fit behind many aftermarket 18" track wheels
• Every component designed to resist the heat of extended track sessions
• Pistons sized properly to maintain proper brake bias and work with the OEM master cylinder and ABS system
• Front kits designed to work with either OEM rear brakes or our J Hook replacement discs (3.0 Premium with 345mm rear discs only)
• Fits OEM 19" wheel
• Patented Disc Burnishing/Bedding Service with kit purchase $100
• Caliper Pad Tension Clips not included

What's In The Box?

• One pair AP Racing CP9668 Radi-CAL Pro5000R six piston calipers in ENP (Electroless Nickel Plated) finish
• One pair 372x34mm AP Racing, 72 vane, J Hook racing discs, with fully floating 6061 hard anodized aluminum hats, and attachment hardware
• One pair caliper mounting brackets and hardware
• One pair Spiegler Stainless Steel Brake Lines with abrasion resistant coating
• Detailed installation instructions
• Brake pads are NOT included with our system. Racing brake pads are a highly personal choice. Many manufacturers include a set of inexpensive, low quality pads with their brake kits. Rather than artificially inflating the price of our system with a set of pads you probably don't want anyway, we've decided to remove the cost from our system and allow our customers to choose the pads that best suit their needs/wants. When purchasing our kit, you are able to choose one set of front pads at a substantial discount vs. the retail price. Please use the drop-down menu to select your pads.
• Pad Tension Clips (frequently referred to as anti-rattle clips) are NOT included with our Competition Kits, but we do offer them as an option if you're concerned about NVH. One of the great benefits of the AP Racing calipers in our system is that they are designed to accommodate pads from a wide range of manufacturers. Each manufacturer builds their pads with specifications that are slightly different. As such, pads from different manufacturers, or even from different batches, won't always fit in the calipers in exactly the same manner. Some pads are a snug fit, while others may rattle around and produce noise. The Essex Designed Pad Tension Kit is designed to dramatically reduce pad movement inside the caliper, along with just about all resulting noise. 

Unsprung Weight Savings vs. OEM Brake Components

Below is a grid that shows the OEM brake component weights vs. our AP Racing by Essex Brake Kits. Despite having more pistons and significantly larger discs, our front Road Kit weighs nearly identical to the OEM system, while our four wheel Competition Kit shaves roughly 45 lbs. of unsprung weight from the car! The front and rear OEM discs do have an aluminum hat riveted to an iron outer ring, but they do not have the ability to float in any manner.

Radi-CAL

“Radi-CAL” is a blanket term used to describe AP Racing’s patented asymmetrical brake caliper design. Radi-Cal technology is grounded in Computer Aided Design (CAD) and Finite Element Analysis (FEA), and allows for organic, alien-looking designs that are a radical departure from conventional caliper designs of the past. Radi-CAL's are widely considered the pinnacle of current brake caliper technology. Since their inception in 2007, these revolutionary calipers have amassed a lengthy string of race victories at all levels of professional motorsport, while redefining brake performance expectations. For more details on the design concept and what these calipers have achieved in professional racing, please visit our blog and read The AP Racing Radi-CAL Story.

The key benefits of the Radi-CAL design:

• Massive Stiffness Increase- A 30+ % increase in both static and dynamic stiffness vs. conventional calipers allows for far less deflection under load, which means superior pedal feel & modulation, more even pad wear, and longer caliper service life.
• Considerable Mass Reduction- Removing all extraneous caliper mass lowers the caliper weight, despite the huge stiffness increases.
• Optimized Airflow- Air moves around and through the caliper more efficiently, providing superior heat evacuation and cooling.
• Efficient Packaging- The asymmetric caliper profile and internal fluid porting allows the caliper to fit into tighter spaces.