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AP Racing front brake kit for the Porsche 997 GT3, GT2 RS with 394mm two-piece discs and calipers

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Angled view of the ENP CP9669 caliper for the Porsche 997 GT3, GT2 RS

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Top view of the CP9669 caliper with pad window, Porsche 997 GT3, GT2 RS kit

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Back of the AP Racing front caliper with bleed screw, Porsche 997 GT3, GT2 RS

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Pad pin and retaining clip on the CP9669 caliper for the Porsche 997 GT3, GT2 RS

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Pistons inside the CP9669 caliper from the Porsche 997 GT3, GT2 RS front kit

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AP Racing Radi-CAL ENP Front CP9669 394mm - Porsche 997 GT3, GT2 RS

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Brand: AP RacingSKU / Part #: 13.01.10169-ENP

Regular price: $7,599.00
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AP Racing Radi-CAL ENP Front CP9669 394mm - Porsche 997 GT3, GT2 RS

Subtotal: $7,599.00

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Overview

The AP Racing by Essex Radi-CAL Competition Brake Kit with ENP (electroless nickel plated) calipers is a front brake upgrade for the Porsche 997 GT3, GT3 RS, GT3 RS 4.0 and GT2 RS. It pairs AP Racing CP9669 Radi-CAL Pro5000R racing calipers with 394 x 34mm, 84-vane AP Racing J Hook discs on fully floating aluminum hats, built for track days and competition driving.

Why upgrade

The kit removes about 10 lb of unsprung weight from the front of the car compared with the OEM brakes. Each caliper weighs 6.9 lb without pads, against 10.0 lb for the factory one-piece caliper. The caliper takes a 25mm thick pad for long life and heat tolerance. The ENP (electroless nickel plated) finish is very durable and easy to clean. The caliper takes pads from all major pad manufacturers. 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 Porsche 997 GT3, GT2 RS, the CP9669 caliper mounts radially on a dedicated bracket at 180mm centers with a 42mm 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. Pads change with two bolts, with no caliper removal. The caliper uses a commonly available 25mm 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. Stainless steel caliper hardware gives a long service life even with frequent pad changes.

Features

AP Racing CP9669 six-piston calipers in ENP finish
394 x 34mm, 84-vane J Hook discs on floating hats
About 10 lb less unsprung weight
25mm thick brake pads
Pistons sized for the OEM master cylinder and ABS

What's Included

One pair AP Racing CP9669 Radi-CAL Pro5000R racing calipers in ENP (Electroless Nickel Plated) finish
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	13.01.10169-ENP
Brand	AP Racing by Essex
Position	Front
Application	Track
Caliper	AP Racing CP9669-2S4L/3S4L Radi-CAL Pro5000R racing, radial mount
Caliper weight (no pads)	6.9 lb each (OEM 10.0 lb)
Piston sizes	25.4mm x 2, 27.0mm x 2, 34.0mm x 2 (39.7 cm2 total area)
Mounting centers / offset	180mm / 42mm
Inlet thread	M10x1.0
Disc	CP4284-156/157 two-piece floating, 394 x 34mm, 84 vanes, J Hook
Disc weight	22.5 lb each (OEM 12.6 lb)
Pad thickness	25mm
Pad dimensions	152.1 x 54 x 25 mm
Brake pads	Not included
Shipping weight	40 lb (18.1 kg)

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 Wheel Fitment Template. Check your wheel with the Essex wheel fitment template before ordering.

Fitment

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.
Year	Make	Model	Chassis	Engine
2007-2008	Porsche	911 GT3, GT3 RS	997.1	3.6L F6
2010-2011	Porsche	911 GT3, GT3 RS	997.2	3.8L F6
2011	Porsche	911 GT2 RS	997	3.6L Twin-Turbo F6
2011	Porsche	911 GT3 RS 4.0	997.2	4.0L F6

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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