Rear second caliper adapter (bracket) BMW E8x, E9x

Upgrade your BMW E8X or E9X rear braking system with the Rear Second Caliper Adapter, designed for dual-caliper setups.
This precision-machined, lightweight aluminum bracket allows seamless installation of a secondary rear caliper, ideal for hydraulic handbrake setups or enhanced motorsport braking systems.

FEATURES

• Enables dual rear caliper setup for advanced braking applications
• CNC machined for exact fitment and anodized for corrosion resistance 
• Maintains correct caliper alignment and pad contact
• Built to withstand extreme track conditions
• Compatible with most hydraulic handbrake systems
• Designed for use with OEM rear knuckles

INSTALLATION REQUIREMENTS

• OEM rear knuckles/wheel carriers from: E8X 130i, 135i, 123d; E9X 320si, 325i, 330i, 335i, 320d, 325d, 330d, 335d
  • Left knuckle: 33326774807
  • Right knuckle: 33326774808

• First brake calipers from: E8X 130i, 135i, 123d; E9X 325i, 330i, 335i, 320d, 325d, 330d, 335d
  • Left caliper housing: 34216769101
  • Right caliper housing: 34216769102
  • Caliper carrier: 34216769104

• Second brake calipers from M performance ventilated brake disc set: E8X 116i, 118i, 120i; E9X 316i, 318i, 320i, 323i, 325i, 328i, 318d, 320d
  • Left caliper housing: 34216768697
  • Right caliper housing: 34216768698
  • Caliper carrier: 34216768696

• Brake disc: E9X 325i, 330i, 335i, 320d, 325d, 330d, 335d – 336×22 mm (34216855004)

NOTES

• Intended for racing and off-road use only
• Requires professional installation for optimal safety and performance
• Compatible with most hydraulic handbrake systems