Essex Designed AP Racing Radi-CAL Competition Brake Kit (Front CP9660/355mm) | Part #: 13.01.10065

KD 1,647.000

Essex Designed AP Racing Radi-CAL Competition Brake Kit (Front CP9660/355mm) | Part #: 13.01.10065

SKU: 13.01.10065 Categories: , , ,

KD 1,647.000

Big Brake Kit/Track (FR)

Available on Order

Share this product


Essex Designed AP Racing Radi-CAL Competition Brake Kit (Front CP9660/355mm)- e46 M3

Part #: 13.01.10065

Application: Track

Complete front Essex Designed AP Racing Radi-CAL Competition Brake Kit for the e46 M3.

  • Features AP Racing CP9660 Radi-CAL six piston calipers
  • 355x32mm, 72 vane AP Racing disc
  • Saves 5 unsprung lbs. from nose vs. OEM brakes
  • Every component designed to resist the heat of extended track sessions
  • Pistons sized properly to allow for seamless integration with OEM master cylinder and ABS system
  • Designed to work with OEM rear brakes or our Essex/AP Racing rear caliper kit.


  • One pair AP Racing CP9660 Radi-CAL Pro5000R racing calipers
  • One pair 355x32mm AP Racing CP5773, 72 vane, J Hook racing discs, with fully floating 6061 hard anodized aluminum hats and attachment hardware
  • One pair caliper mounting brackets and hardware
  • One pair Spiegler Stainless Steel Brake Lines with abrasion resistant coating
  • Detailed installation instructions
  • Including brake pads Ferodo DS3.12 and Pad tension kit

Advantages Over OEM Brake System

Our CP9660/355mm Radi-CAL Competition Brake Kit offers our customers the following advantages over the OEM brake system:

  • Approximately 5 lbs. of unsprung weight reduction from EACH front corner vs. , or lbs. of unsprung weight reduction from the car
  • AP Racing Radi-CAL calipers are the stiffest, lightest, and most technologically advanced calipers available at any price
  • CP9660 calipers use a 18mm thick, commonly available brake pad shape
  • Ventilated, domed back, stainless steel pistons keep heat out of the brake fluid and provide an ultra-firm pedal
  • Mitigation of pad knockback via anti-knockback springs behind the caliper pistons
  • Anodized caliper finish that is resistant to wear and deterioration at elevated temperatures
  • Stainless steel caliper hardware for a long caliper service life under frequent pad change conditions
  • High temperature, low drag seals that will hold up to track temps= less rebuilding and longer service life
  • No dust boots to burn up
  • Simple pad change with two bolts or quick-change spring clip, no caliper removal required
  • Lifetime professional caliper rebuilding support by Essex (at a fee)- pull off your calipers, send them to us, we clean, inspect, and rebuild them
  • Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately
  • Championship winning, 72 vane, fully floating, AP Racing J Hook racing discs with 12 attachment points to hat
  • Anti-knockback/anti-rattle disc attachment hardware
  • Replacement iron disc rings available at an extremely competitive replacement price ($359 each).
  • Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life
  • Highest quality, Spiegler stainless steel brake line with clear sheath that reduces compliance over OEM rubber design
Model Year 2001-2006
Essex/AP BBK E46 M3
Caliper CP9660-2S4L/3S4L
Weight no Pads 6.2 lbs. 8 lbs.
27.0mm x 2
Piston Sizes 31.8mm x 2
38.1mm x 2
Piston Area 50.1cm^2
Inlet Thread M10x1.0
Mounting Type Radial
Mtg. Centers 180mm
Mtg. Offset 42mm
Pad thickness 18mm
Disc CP5773-102/103GA
Type 2-piece floating
Weight 17.6 lbs. 19 lbs.
Diameter 355mm 325mm
Thickness 32mm 28mm
Radial Depth 54mm
No. of Vanes 72