AP Racing Radi-CAL ENP Competition Front Kit 355mm - VW GTI Mk6

The AP Racing by Essex Radi-CAL Competition Brake Kit with ENP (electroless nickel plated) calipers is a front brake upgrade for the 2010-2013 Mk6 Volkswagen GTI. It pairs AP Racing CP9661 Radi-CAL Pro5000R racing calipers with 355 x 32mm, 72-vane AP Racing J Hook discs on fully floating aluminum hats, built for track days and competition driving. Clears OEM 18 inch wheels without a spacer.

Why upgrade

The kit removes about 12 lb of unsprung weight from the front of the car compared with the OEM brakes, despite dramatically larger components. Each caliper weighs 6.2 lb without pads, against 14.8 lb for the factory single pist. slider caliper. Each two-piece disc weighs 17.6 lb, compared with 18.7 lb for the original 312mm disc. The caliper takes a 18mm thick pad for long life and heat tolerance. The ENP (electroless nickel plated) finish is very durable and easy to clean. 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.

Caliper and disc construction

On the VW GTI Mk6, the CP9661 caliper mounts radially on a dedicated bracket at 180mm centers with a 42mm offset, with an M10x1.0 inlet thread. Pads change with two bolts or a quick-change spring clip, with no caliper removal. The championship-winning 72-vane AP Racing J Hook discs are fully floating. The discs use anti-knockback, anti-rattle attachment hardware. 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 electroless nickel plated finish resists wear and deterioration, even at high temperatures. The caliper uses a commonly available 18mm thick pad shape.

Features

• AP Racing CP9661 six-piston calipers in ENP finish
• 355 x 32mm, 72-vane J Hook discs on floating hats
• About 12 lb less unsprung weight
• 18mm thick brake pads
• Pistons sized for the OEM master cylinder and ABS

What's Included

• One pair AP Racing CP9661 Radi-CAL Pro5000R racing calipers in ENP Finish (Electroless Nickel Plated)
• One pair 355x32mm 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. Essex has confirmed clearance with OEM 18 inch MK6 front wheels and Forgeline GA3R 17x9 +30. Call us about the Volkswagen GTI before ordering; we have not confirmed fitment for them yet. Check your wheel with the Essex wheel fitment template before ordering.

Fitment