VW Golf GTI / R MK7 – BTCC Big Brake Kit – AP Racing CP9660 Complete Upgrade | XC3 Engineering

XC3 Engineering BTCC Big Brake Kit – VW Golf GTI / R Mk7

Upgrade the front braking performance of your VW Golf GTI or Golf R Mk7 with the XC3 Engineering BTCC Big Brake Kit.

Built around AP Racing CP9660 Pro 5000 R six-piston calipers, 368 × 36 mm ex-BTCC floating rotors and XC3 precision-engineered mounting components, this complete front brake upgrade is designed for fast-road, trackday and clubsport use.

The larger rotor package increases thermal capacity and helps improve braking consistency under repeated heavy use, making it particularly well suited to modified Mk7 GTI and Golf R builds running more power, higher-grip tyres or regular track sessions.

Why Choose the XC3 BTCC Big Brake Kit?

The standard Mk7 front braking system can become increasingly challenged as vehicle performance and track use increase.

Repeated hard braking generates significant heat, which can increase pad wear and reduce consistency over longer sessions.

The XC3 BTCC Big Brake Kit is designed to provide:

• Increased thermal capacity
• Improved braking consistency
• Better repeatability under heavy use
• AP Racing six-piston calipers
• Floating motorsport-derived rotors
• Improved suitability for track use
• Strong replacement consumable options

AP Racing CP9660 Pro 5000 R Calipers

At the heart of the kit are AP Racing CP9660 Pro 5000 R six-piston calipers.

These are developed for serious performance and motorsport applications and provide a strong basis for a high-capacity front braking system.

Potential benefits include:

• Strong braking response
• Good pedal modulation
• Consistent pad pressure
• High-temperature capability
• Proven motorsport construction

Choice of Caliper Finish

The AP Racing CP9660 calipers are available in:

• Anodised finish
• Nickel-plated finish

This allows the kit to be tailored around the desired appearance and finish.

368 × 36 mm Ex-BTCC Floating Rotors

The kit uses genuine motorsport-derived 368 × 36 mm ex-BTCC floating brake rotors.

The larger rotor dimensions increase thermal capacity, helping the braking system manage the heat generated during repeated high-energy stops.

This is particularly beneficial for:

• Track days
• Longer sessions
• Higher-power cars
• High-grip tyre setups
• Aggressive fast-road driving

Floating Rotor Construction

The floating bobbin assembly allows the rotor to expand in a controlled way as temperatures increase.

Potential benefits include:

• Improved thermal behaviour
• Reduced thermal stress
• More consistent braking
• Better repeatability across demanding sessions

XC3 Anodised Rotor Bells

XC3 anodised aluminium rotor bells are included as part of the complete conversion.

These are precision engineered for the Mk7 application and are designed to provide:

• Correct rotor positioning
• Accurate fitment
• Lightweight construction
• Reliable operation under demanding use

XC3 Anodised Caliper Brackets

The supplied XC3 caliper brackets position the AP Racing CP9660 calipers correctly relative to the 368mm rotor.

Correct geometry is important for:

• Caliper alignment
• Proper pad sweep
• Correct rotor positioning
• Reliable brake operation

AP Racing Floating Bobbin Hardware

AP Racing floating bobbin kits are supplied with the brake kit.

These provide the interface between the rotor and XC3 bell, allowing the floating disc assembly to operate correctly as temperatures change.

Braided Front Brake Lines

A pair of braided front brake lines is included.

Braided hoses can help reduce hose expansion under braking pressure and contribute to a more consistent pedal feel.

High-Tensile Mounting Hardware

Chemi Black high-tensile bracket hardware is supplied with the kit.

This provides a strong and secure mounting solution for the XC3 caliper brackets.

Ex-BTCC Brake Pads

The kit includes inspected ex-BTCC brake pads.

These give owners access to motorsport-derived friction hardware as part of the complete package.

Because the supplied pads are previously used motorsport components, cosmetic marks and signs of prior use should be expected.

Ex-BTCC Rotor Condition

The supplied 368 × 36 mm rotors are inspected ex-BTCC components.

They provide access to high-level motorsport hardware at a lower cost than an equivalent fully new setup.

Signs of previous motorsport use and cosmetic marks should be expected.

Built for Fast Road & Track Use

The XC3 BTCC Big Brake Kit is particularly well suited to:

• Fast-road Golf GTI builds
• Golf R performance builds
• Trackday cars
• Clubsport projects
• Higher-power Mk7 models
• Cars running semi-slick or higher-grip tyres

Lifetime Warranty

XC3-manufactured components are covered by the XC3 Lifetime Warranty.

This applies to the components manufactured by XC3 within the kit, including the vehicle-specific mounting hardware.

Warranty terms and conditions should be checked before purchase.

Professional Installation Required

Professional installation is required.

Performance braking systems are safety-critical and should be fitted by a suitably experienced technician.

Installation should include checks of:

• Caliper alignment
• Rotor positioning
• Pad sweep
• Brake hose routing
• Hardware torque
• Wheel clearance
• Full brake system bleeding

Wheel Clearance

Wheel clearance must be checked before ordering, especially with aftermarket wheels.

Compatibility can depend on:

• Wheel diameter
• Wheel offset
• Spoke profile
• Inner barrel clearance

Vehicle Fitment

Compatible with:

• VW Golf GTI Mk7
• VW Golf R Mk7

What's Included?

• 2 x AP Racing CP9660 Pro 5000 R six-piston calipers
• Choice of anodised or nickel-plated caliper finish
• 2 x Ex-BTCC 368 × 36 mm floating rotors
• 2 x XC3 anodised rotor bells
• 2 x XC3 anodised caliper brackets
• 2 x AP Racing floating bobbin kits
• 1 x Pair braided front brake lines
• Chemi Black high-tensile bracket hardware
• Ex-BTCC brake pads

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