BMW M3 E9X Caliper Carrier – BTCC Rotor Upgrade for AP Racing CP9660 Caliper | XC3 Engineering
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XC3 Engineering BMW M3 E9X Caliper Carrier – BTCC Rotor Upgrade for AP Racing CP9660 Caliper
Upgrade the braking setup on your BMW M3 E9X with the XC3 Engineering Caliper Carrier, designed specifically for use with AP Racing CP9660 calipers and BTCC-spec brake rotors.
Precision CNC machined from 6082-T6 aluminium, this carrier provides the correct mounting interface required to install the CP9660 caliper and compatible BTCC rotor setup onto the factory BMW E9X M3 front hub.
Designed for performance road, clubsport and track builds, the XC3 carrier combines accurate fitment, strong construction and corrosion-resistant finishing with high-quality mounting hardware.
Why Choose the XC3 Caliper Carrier?
The caliper carrier is a critical part of any brake conversion, determining the position and alignment of the caliper relative to the brake disc.
The XC3 Engineering carrier is designed specifically around the BMW E9X M3 front hub and AP Racing CP9660 caliper, helping provide a precise and secure installation for BTCC rotor conversions.
Key benefits include:
- Precision fitment
- Strong lightweight construction
- Suitable for serious track use
- Designed around AP Racing CP9660 calipers
- Compatible with BTCC-spec rotor conversions
- Corrosion-resistant finish
- Supplied with high-strength mounting hardware
Precision CNC Machined
Each caliper carrier is CNC machined for accurate fitment and consistent dimensions.
Precise machining is especially important in braking applications, where caliper positioning must remain accurate relative to the brake rotor.
This helps ensure the braking components sit in the correct position when installed.
6082-T6 Aluminium Construction
The carrier is manufactured from 6082-T6 aluminium.
This material offers a strong combination of:
- High strength
- Low weight
- Rigidity
- Durability
This makes it well suited to performance braking applications where both strength and weight are important.
Black Anodised Finish
The carrier is finished in black anodising for improved corrosion resistance and long-term durability.
The anodised finish also gives the component a clean, professional appearance suitable for high-end performance builds.
CNC Engraved XC3 Logo
Each carrier features a CNC engraved XC3 logo for a high-quality finished appearance.
High-Strength Mounting Hardware
Chemi Black 12.9 tensile mounting hardware is included with the carrier.
This high-strength hardware is designed to provide a secure mounting solution for the caliper assembly.
Designed for AP Racing CP9660 Calipers
This carrier is specifically intended for use with AP Racing CP9660 brake calipers.
The CP9660 is widely used in high-performance and motorsport brake setups and pairs well with BTCC-style rotor configurations.
BTCC Rotor Upgrade Compatibility
The carrier forms a key part of a BTCC rotor upgrade setup for the BMW E9X M3.
It allows the AP Racing CP9660 caliper to be correctly positioned in relation to the upgraded brake rotor.
This makes it particularly suitable for:
- Trackday builds
- Clubsport cars
- Fast-road performance builds
- Motorsport-inspired braking systems
Performance Braking Upgrade
A properly configured big brake setup can help improve:
- Braking consistency
- Heat management
- Pedal confidence
- Repeatability under heavy use
- Resistance to brake fade
The caliper carrier itself does not increase braking performance in isolation, but it enables the installation of the upgraded caliper and rotor combination required for a complete performance braking system.
Ideal for Track-Focused Builds
This carrier is particularly suited to E9X M3s undergoing serious brake upgrades.
It can form part of a setup designed for:
- Trackdays
- Clubsport use
- High-performance road driving
- Motorsport-style braking conversions
Direct Fitment to OEM Front Hubs
The XC3 carrier is designed to fit BMW E9X M3 models using the original front hubs.
No alternative hub conversion is required for fitment.
Lifetime Warranty
XC3 Engineering backs this product with a lifetime warranty.
This provides additional confidence in the strength and durability of the component.
Warranty terms and conditions should be checked before purchase.
Vehicle Fitment
BMW M3 E9X
Compatible with:
- BMW E90 M3
- BMW E92 M3
- BMW E93 M3
Model years:
- 2006–2012
Requirements:
- OEM front hubs
- AP Racing CP9660 calipers
- Compatible BTCC-spec brake rotors
What's Included?
- XC3 Engineering Caliper Carrier
- Chemi Black 12.9 tensile mounting hardware
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