AP Racing Pro5000R CP9660 378×36mm Front Big Brake Kit – BMW F8X M2 M3 M4 | 72Racing

AP Racing CP9660 378 x 36 mm Front Big Brake Kit for BMW F8X M2, M3 & M4

A complete front big brake package for the BMW F87 M2, F87 M2 Competition, F80 M3 and F82/F83 M4, built around genuine AP Racing Pro5000R CP9660 six-piston calipers and brand-new genuine AP Racing 378 x 36 mm floating J-Hook friction rings.

Complete Kit Contents

• 2 x genuine AP Racing CP9660 Pro5000R six-piston calipers
• Choice of Anodised Grey or Nickel Plated caliper finish
• 2 x brand-new genuine AP Racing 378 x 36 mm J-Hook friction rings
• AP Racing rotor references CP5772-2068RA / CP5772-2069RA
• 2 x 72Racing vehicle-specific aluminium rotor bells
• 2 x 72Racing vehicle-specific CP9660 caliper brackets
• Complete AP Racing floating bobbin assemblies
• AP Racing anti-rattle spring hardware
• Caliper-to-bracket mounting bolts
• Bell-to-disc mounting hardware
• F8X-to-CP9660 braided front brake lines
• Brake pads according to the selected option

72Racing Mounting Package

The 72Racing bells and caliper brackets are specified around the drawings for the exact AP Racing 378 x 36 mm friction rings used in this kit. This provides the correct bell offset, disc position and CP9660 caliper-carrier geometry for the F8X front axle.

AP Racing CP9660 Calipers

• Anodised Grey: CP9660-2S4L / CP9660-3S4L
• Nickel Plated: CP9660-2S4LN / CP9660-3S4LN
• Six-piston Pro5000R motorsport caliper
• 18 mm pad thickness
• 180 mm radial mounting centres
• Designed for 32-36 mm thick discs up to 380 mm diameter
• AP Racing pad shape CP3905D54

Brake Pad Options

• No Pads – for customers supplying their own CP9660-compatible pads
• EBC Racing RP-X – track-focused high-friction compound
• Endless ME20 / CC40 – high-temperature motorsport compound
• Endless ME22 / CC38 – endurance and circuit-focused compound
• Pagid RSL29 – endurance and track-day compound
• Ferodo DS1.11 – high-friction circuit compound

Replacement Friction Rings

The 72Racing bells are retained when the discs reach their wear limit. Replacement genuine AP Racing friction rings are standard catalogue components:

• CP5772-2068RA – RH
• CP5772-2069RA – LH

Floating bobbins and anti-rattle hardware can also be replaced as service items.

Vehicle Fitment

• BMW F87 M2
• BMW F87 M2 Competition
• BMW F80 M3
• BMW F82 M4
• BMW F83 M4

Wheel Clearance & Installation

This is a front-axle motorsport brake conversion. Wheel-to-caliper and wheel-to-disc clearance must be checked before ordering. The compact CP9660 is commonly selected where 18-inch motorsport wheels are required, but final clearance depends on wheel barrel, spoke profile, width and offset and remains the customer's responsibility.

AP Racing Pro5000R calipers do not use conventional road-car dust seals and should be inspected and maintained appropriately, particularly on vehicles used through winter. Professional installation is strongly recommended.

Matching Rear Brake Options

Complete the AP Racing system with one of two rear packages:

• AP Racing CP9449 380 x 28 mm Rear Kit with BMW 2NH Discs – the lower-cost route using serviceable existing or new Genuine BMW 2NH rear discs.
• AP Racing CP9449 380 x 28 mm Floating Rear Kit – the premium rear package using genuine AP Racing floating J-Hook endurance discs and dedicated bells.