AP Racing Radi-CAL Competition Front Brake Kit 372mm - C6 Corvette

The AP Racing by Essex Radi-CAL Competition Brake Kit fits every C6 Corvette built from 2005 through 2013, from the LS2 coupe to the Z06, Grand Sport and ZR1. AP Racing CP9668 Radi-CAL Pro5000R six-piston calipers grip 372 x 34mm, 84-vane J Hook discs, replacing the factory front brakes with a system made for the heat that a C6 generates on a road course.

Why upgrade

The C6 is heavy and fast, and its stock front brakes run out of thermal capacity quickly on track. This kit cuts about 5 pounds from each front corner of a base C6, or 10 pounds total, and shaves 13 pounds from the nose of a Z06. The 25mm thick pad is far deeper than the 14.7mm factory pad, so a set lasts much longer between changes, and the pistons are sized for the OEM master cylinder and ABS, so the car keeps its familiar pedal feel.

Caliper and disc construction

The CP9668 caliper body is computer optimized and asymmetric, with stiffness concentrated along the load paths and weight removed elsewhere. Its ventilated, domed-back stainless pistons keep heat out of the brake fluid for an ultra-firm pedal, and the commonly available 25mm pad shape gives a wide choice of compounds. The CP6084 discs have 84 vanes for strong cooling and mount on 6061 hard anodized aluminum hats with fully floating hardware.

Features

• AP Racing CP9668 Radi-CAL Pro5000R six-piston calipers
• 372 x 34mm, 84-vane J Hook discs on floating aluminum hats
• Saves 10 lb on a base C6 and 13 lb on a C6 Z06
• 25mm thick, commonly available pad shape
• Works with the OEM rear brakes or a matching AP Racing rear kit

What's Included

• One pair AP Racing CP9668 Radi-CAL Pro5000R racing calipers
• One pair 372x34mm AP Racing CP6084, 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.

Specifications

Video

Fitment notes

Covers all C6 Corvette models below. Confirmed aftermarket wheels include APEX VS-5RS 18 x 10 +32 and CCW TS12 18 x 11 shallow concave; check factory and other wheels with the wheel fitment template before ordering. Pads are sold separately.

Fitment