AP Racing Radi-CAL Competition Rear Kit 365mm - Gen 5 Camaro

The AP Racing by Essex Radi-CAL Competition Brake Kit is a rear brake upgrade for the 2010-2015 fifth generation Camaro. It pairs AP Racing CP9449 Radi-CAL Pro5000R racing calipers with 365 x 30mm, 72-vane AP Racing J Hook discs on fully floating aluminum hats, built for track days and competition driving.

Why upgrade

The kit removes about 6 lb of unsprung weight from the rear of the car compared with the OEM brakes. Each caliper weighs 4.85 lb without pads, against 5.25 lb for the factory four-piston opposed caliper. Each two-piece disc weighs 16.7 lb, compared with 23.20 lb for the original disc. The caliper takes a 16.75mm thick pad for long life and heat tolerance. The OEM parking brake keeps working. 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 Gen 5 Camaro, the CP9450 caliper mounts radially on a dedicated bracket at 152mm centers with a 44mm offset, with an M10x1.0 inlet thread. 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 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 CP9450 0-piston calipers
• 365 x 30mm, 72-vane J Hook discs on floating hats
• About 6 lb less unsprung weight
• 16.75mm thick brake pads
• Pistons sized for the OEM master cylinder and ABS

What's Included

• One pair AP Racing CP9449 Radi-CAL Pro5000R racing calipers
• One pair 365x30mm AP Racing CP8972, 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 rear 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