BMW M3 E90 E92 E93 BTCC Big Brake Kit – AP Racing CP9660 368mm Front Brake Upgrade | XC3 Engineering

Product Overview

Unlock serious braking performance for your BMW M3 E9X with the XC3 BTCC Big Brake Kit. Built around AP Racing CP9660 Pro 5000 R six-piston calipers, available in Anodised Grey or Nickel Plated finish, ex-BTCC 368mm x 36mm floating rotors and XC3 precision-engineered mounting components, this complete front brake upgrade is designed for fast road, track day and clubsport use. The kit increases thermal capacity, improves braking consistency and gives the E9X M3 platform a proven motorsport brake package with strong replacement consumable options.

What’s Included

• 2 x AP Racing CP9660 six-piston calipers

• Choice of Anodised Grey or Nickel Plated caliper finish

• 2 x ex-BTCC 368mm x 36mm rotors

• 2 x XC3 anodised rotor bells

• 2 x XC3 anodised caliper brackets

• 2 x AP Racing bobbin kits

• Optional anti-rattle clips

• 1 x pair braided brake lines

• Chemi black high-tensile bracket hardware

• Ex-BTCC Pagid RSX brake pads

Product Description

The BMW E9X M3 is one of BMW’s most capable driver-focused platforms, but repeated hard braking on road or track can quickly expose the limits of the factory front brake setup. Higher speeds, high-grip tyres and longer sessions create more heat, more pad demand and less braking consistency.

The XC3 BTCC Big Brake Kit solves this by combining motorsport-derived 368mm x 36mm floating rotors with AP Racing CP9660 six-piston calipers, available in Anodised Grey or Nickel Plated finish. The larger rotor size improves heat capacity, while the floating bobbin assembly allows controlled rotor expansion under temperature. Optional anti-rattle clips are also available for customers who want to reduce floating rotor hardware noise while retaining the benefits of a floating disc assembly.

XC3-designed bells and caliper brackets ensure correct fitment, rotor positioning, caliper alignment and pad sweep on the E9X M3 chassis. The supplied rotors and pads are inspected ex-BTCC components, giving customers access to high-level motorsport hardware at a more cost-effective price point than a fully new equivalent setup. Some cosmetic marks and signs of previous motorsport use should be expected.

Key Features

• AP Racing CP9660 Pro 5000 R six-piston calipers

• Choice of Anodised Grey or Nickel Plated calipers

• Ex-BTCC 368mm x 36mm floating brake rotors

• XC3 anodised aluminium rotor bells

• XC3 anodised caliper brackets

• AP Racing floating bobbin hardware

• Optional anti-rattle clips available

• Braided front brake lines

• Chemi black high-tensile bracket hardware

• Ex-BTCC Pagid RSX brake pads included

• Designed for BMW E9X M3 with OEM front hubs

• XC3 manufactured components covered by our Lifetime Warranty

Why Buy from XC3

XC3 Engineering designs and manufactures key brake kit components in the UK, including our vehicle-specific rotor bells and caliper brackets. Every XC3-manufactured component is developed for accurate fitment, correct brake geometry and real-world track use. Our manufactured parts are also covered by our Lifetime Warranty, giving you confidence that your brake kit is backed by proper engineering support.

All XC3 Big Brake Kit customers also receive 10% off future replacement brake consumables, including pads, rotors, bells and service hardware, helping reduce long-term running costs.

Vehicle Fitment

• BMW M3 E90

• BMW M3 E92

• BMW M3 E93

For vehicles using OEM front hubs. Professional installation required. Wheel clearance must be checked before ordering, especially with aftermarket wheels. These kits may be made to order depending on stock availability.

We understand it can be a bit confusing to figure out if a part will work for your car. No worries! Just shoot us a message with your question, and our friendly sales team will then be in touch to confirm if this part is the correct for your vehicle!

Disclaimer:

Products sold by Nineteen72 Performance are exclusively designed for off-road or sanctioned competition use. Any use on public roads is strictly prohibited and may violate local, state, and federal laws. Nineteen72 Performance does not confirm the legality of road use; it is the consumer's responsibility to comply with applicable laws. Use of these products for any purpose other than intended is at the user's own risk. Nineteen72 Performance is not liable for misuse or non-compliance.

Warranty:

At Nineteen72 Performance, we proudly back every product in our store, ensuring that each item comes with a comprehensive warranty.

All components crafted by our esteemed third-party partners in the store are accompanied by a minimum one-year manufacturer's warranty. Our warranty terms are uniform across all products, providing coverage for any manufacturing defects that may arise over time, excluding typical wear and tear. Your satisfaction and product durability are our top priorities.

Shipping & Returns:

At Nineteen72 Performance we offer worldwide shipping.

14-Day Easy Returns at Nineteen72 Performance

Love what you bought from Nineteen72 Performance? Great! If not, no worries. Enjoy a hassle-free 14-day return window. Just ensure your items are unused and in their original condition. For returns, contact us at Returns@Nineteen72Performance.co.uk. Your satisfaction drives us.

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