AP Racing Radi-CAL Competition Front Kit 355mm - BRZ, FR-S, 86, GR86

The AP Racing by Essex Radi-CAL Competition Brake Kit is a front brake upgrade for the Subaru BRZ, Scion FR-S, Toyota 86 and GR86. It pairs AP Racing CP9660 Radi-CAL Pro5000R racing calipers with 355 x 24mm, 54-vane AP Racing J Hook discs on fully floating aluminum hats, built for track days and competition driving. Clears OEM 18 inch 2022 BRZ wheel without a spacer.

Why upgrade

The kit removes about 10 lb of unsprung weight from the front of the car compared with the OEM brakes. The caliper takes a 17.8mm thick pad for long life and heat tolerance. Every component is designed to resist the heat of extended track sessions. Pistons are sized to work seamlessly with the OEM master cylinder and ABS.

Caliper and disc construction

On the BRZ, FR-S, 86, GR86, the CP9660 caliper mounts radially on a dedicated bracket. Stainless steel caliper hardware gives a long service life even with frequent pad changes. There are no dust boots to burn up at track temperatures. Pads change with two bolts or a quick-change spring clip, with no caliper removal. The championship-winning 72-vane AP Racing J Hook discs are fully floating. The discs use anti-knockback, anti-rattle attachment hardware. The disc metallurgy is designed for the temperatures seen on track, for a long service life. Spiegler stainless steel brake lines with a clear sheath reduce compliance compared with the OEM rubber lines.

Features

• AP Racing CP9660 2-piston calipers
• 355 x 24mm, 54-vane J Hook discs on floating hats
• About 10 lb less unsprung weight
• 17.8mm thick brake pads
• Pistons sized for the OEM master cylinder and ABS

What's Included

• One pair AP Racing CP9660 Radi-CAL Pro5000R racing calipers
• One pair 355x32mm AP Racing CP7177, 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.

Specifications

Video

Fitment notes

This front kit fits the vehicles in the table below, which we confirmed against two sources using US model years. Essex has confirmed clearance with OEM 18 inch 2022 BRZ, APEX Arc-8 17x9, ET 35 (very close fit, make sure you have 2mm clearance), APEX EC7R 18X9.5 +40mm, APEX VS-5RS 17x9 +35mm and Clearance behind OEM front 18 inch wheel spokes shown below.. Check your wheel with the Essex wheel fitment template before ordering.

Fitment