AP Racing Radi-CAL Competition Front Kit 372mm - 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 six-piston calipers with 372 x 24mm, 54-vane AP Racing J Hook discs on fully floating aluminum hats, built for track days and competition driving. Does NOT clear OEM 18 inch wheel without a spacer.

Why upgrade

Several pounds of unsprung weight reduction from the car's nose, despite a huge size increase. 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. It works with the OEM rear brakes or a matching AP Racing rear kit.

Caliper and disc construction

On the BRZ, FR-S, 86, GR86, the CP9660 caliper mounts radially on a dedicated bracket. 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. The caliper uses a commonly available 18mm thick pad shape. Ventilated, domed-back stainless steel pistons keep heat out of the brake fluid for a very firm pedal. Anti-knockback springs behind the caliper pistons limit pad knockback. The anodized caliper finish resists wear and deterioration at high temperatures. Stainless steel caliper hardware gives a long service life even with frequent pad changes.

Features

• AP Racing CP9660 2-piston calipers
• 372 x 24mm, 54-vane J Hook discs on floating hats
• 17.8mm thick brake pads
• Pistons sized for the OEM master cylinder and ABS
• No caliper removal for pad changes

What's Included

• One pair AP Racing CP9660 Radi-CAL Pro5000R six piston calipers
• One pair 372x34mm 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. Check your wheel with the Essex wheel fitment template before ordering.

Fitment