AP Racing Radi-CAL Competition Brake Kit (Front 9668/390mm) R35 Nissan GT-R
AP Racing Radi-CAL Competition Brake Kit (Front 9668/390mm) R35 Nissan GT-R.
Complete front Essex Designed AP Racing Radi-CAL Competition Brake Kit for the R35 Nissan GT-R.
Clears OEM 20" wheel without a spacer
Features AP Racing CP9668 Radi-CAL Pro5000R six piston calipers
390x36mm, 84 vane AP Racing disc
Saves 11 unsprung lbs. from nose vs. OEM brakes
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
Designed to work with OEM rear brakes
What's included in the Kit:
One pair AP Racing CP9668 Radi-CAL Pro5000R six piston calipers
One pair 390x36mm AP Racing CP4284, 84 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.
Please note that each caliper requires one Pad Tension Kit. If you need enough tension blocks for both of your calipers, you need to order two of these kits!
Please note that the pad shape we use in our caliper is available in a variety of radial depths (heights), and that Essex recommends the 54mm radial depth version. Another common radial depth in this pad shape is 51mm. The 51mm depth pads will fit into our caliper, but you will be leaving an unswept 'ring' around the disc near the attachment points to the hat (the pad will not hang as low in the caliper). Leaving a portion of the disc face unswept can create a temperature differential across the face of the disc, and doing so could lead to premature disc cracking.
The available pad compounds that Essex sells for the CP9668 caliper can be found below. Please keep in mind that there are many other compounds available on the market from other manufacturers. The list below represents only what Essex sells. Underneath the manufacturer list below, the pad compounds are listed from most aggressive to least aggressive.
Pad Cross Reference Since we do not offer many of the brands listed below, Essex cannot guarantee the fitment of these pads in the AP Racing CP9668 caliper, and they may need to be modified as shown above (loop removed). Based on our research however, we believe that these are the appropriate cross references for the basic shape. However, you should verify with either the manufacturer or your installer prior to purchasing any of them for use in the Pro5000R calipers.