BMW M2 / M3 / M4 F8X BTCC Brake Conversion Kit – Caliper Carriers & Rotor Bells for AP Racing CP9660 | XC3 Engineering

Product Overview

The XC3 Engineering BTCC Brake Conversion Kit is a precision-engineered solution for upgrading the braking system on BMW M2, M3 and M4 F8X chassis using AP Racing CP9660 calipers (not included).

This kit includes CNC-machined caliper carriers and lightweight performance rotor bells, engineered to position CP9660 calipers correctly and allow use of BTCC-spec 368 × 36 mm rotors. Every component is manufactured to motorsport tolerances, ensuring repeatable braking performance, structural rigidity, and reliable thermal behaviour under extreme use.

Ideal for track builds, time-attack cars, and high-performance road applications seeking a proven, high-capacity braking foundation without compromise.

Kit Details and Contents:

• XC3 Custom caliper brackets
• XC3 Custom Rotor Bells 
• 6082 T6 aluminium construction
• Black anodised for longevity
• CNC engraved 
• Caliper bracket hardware included
• Designed and manufactured in the UK

Maximize cost efficiency and performance with the utilisation of BTCC rotors and the industry-leading AP Racing 5000R CP9660 caliper. This upgrade is a must-have for any Clubsport or Trackday build, providing unparalleled performance and value.

Fitment:

BMW M2 M3 M4 F8X with standard OEM Front Hubs

Lifetime Warranty

This product is backed by the XC3 Lifetime Warranty, giving you complete confidence in its strength and durability. All XC3 components are designed and manufactured to the highest standards, ensuring long-term reliability and performance. Because we believe in the quality of our engineering, we offer a lifetime warranty on every part we produce.

Related Parts:

Replacement ex-BTCC Rotors → View Product

AP Racing Bobbins → View Product

Full bolt on BTCC Kit for BMW M3 F8X → View Product

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.

Klarna
Offers a number of options at checkout including: Pay Later (delay payment by up to 30 days, interest free); Split Payments (split payments in 3 up to 3 months, interest free); Installments (split payments up to 6 months interest-free, up to 24 months interest bearing). Maximum purchase £1,500.

0% Interest is available. Select 'Klarna' at checkout.