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AP Racing Radi-CAL rear brake kit for the C7 Corvette with black calipers, 365mm discs and lines

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Rear three-quarter view of the black CP9450 four-piston caliper for the C7 Corvette

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Outer face of the Pro 5000R rear caliper from the C7 Corvette kit

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Top view of the four-piston rear caliper with pad pin and open pad window

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Close up of the pad retaining pin inside the AP Racing rear caliper for the C7

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Pistons inside the black Radi-CAL rear caliper for the C7 Corvette

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AP Racing Radi-CAL Competition Rear Brake Kit 365mm - C7 Corvette

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Brand: AP RacingSKU / Part #: 13.01.10049

Regular price: $4,899.00
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AP Racing Radi-CAL Competition Rear Brake Kit 365mm - C7 Corvette

Subtotal: $4,899.00

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Overview

The AP Racing by Essex Radi-CAL Competition Brake Kit is a rear brake system for every 2014-2019 C7 Corvette, from the Stingray and Z51 to the Grand Sport, Z06 and ZR1. It uses AP Racing CP9450 Radi-CAL four-piston calipers and 365 x 30mm, 72-vane J Hook discs, and it keeps the factory parking brake working, so it suits dual-duty street and track cars.

Why upgrade

A matched rear kit keeps the C7's brake balance correct after a front upgrade and adds heat capacity at the axle that carries the most weight. It saves about 24 pounds of unsprung weight compared with the standard Z06 and Grand Sport iron brakes, and about 10 pounds compared with the Z07 carbon ceramic option, with spares that cost a fraction of carbon ceramics. Each caliper weighs 4.80 pounds, and each floating disc weighs 16.7 pounds with its hat.

Caliper and disc construction

The CP9450 is a hard anodized Radi-CAL caliper with stainless pistons, anti-knockback springs and low-drag, high-temperature seals. The CP5775 discs use 72 vanes and fully floating 6061 hard anodized aluminum hats. Pistons are sized for the OEM master cylinder and ABS, and the kit is designed to work with all of the AP Racing front kits for the C7.

Features

AP Racing CP9450 Radi-CAL four-piston rear calipers
365 x 30mm, 72-vane J Hook discs on floating hats
Retains the OEM parking brake
Up to 24 lb lighter than the OEM rear brakes
Pairs with AP Racing C7 front kits

What's Included

One pair AP Racing CP9450 Radi-CAL Pro5000R racing calipers
One pair 365x30mm AP Racing, 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

Manufacturer part number	13.01.10049
Brand	AP Racing by Essex
Position	Rear
Application	Track
Caliper	AP Racing CP9450-2/3S4L Radi-CAL Pro5000R, four piston, radial mount
Caliper weight (no pads)	4.80 lb each (OEM 5.0 to 8.0 lb)
Piston sizes	26.9mm x 2, 31.75mm x 2 (27.2 cm2 total area)
Mounting centers / offset	152mm / 44mm
Inlet thread	M10x1.0
Disc	CP5775-214/215GA two-piece floating, 365 x 30mm, 72 vanes, J Hook
Disc weight	16.7 lb each with hat (OEM 17.9 to 24.9 lb)
Pad thickness	16.75mm
Parking brake	Retains OEM parking brake
Brake pads	Not included
Shipping weight	40 lb (18.1 kg)

Video

Fitment notes

Fits every C7 Corvette below and keeps the factory parking brake. Clears the OEM C7 Z06 20 inch rear wheels and Forgeline GA1R 18 x 13 +62 without a spacer. Very wide 13 inch wheels may need a spacer to clear the upper control arm at full droop.

Fitment

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.
Year	Make	Model	Chassis	Engine
2014-2019	Chevrolet	Corvette Stingray	C7	6.2L V8 (LT1)
2017-2019	Chevrolet	Corvette Grand Sport	C7	6.2L V8 (LT1)
2015-2019	Chevrolet	Corvette Z06	C7	6.2L Supercharged V8 (LT4)
2019	Chevrolet	Corvette ZR1	C7	6.2L Supercharged V8 (LT5)

Fitment

Year	Make	Model

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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