Essex AP Racing Competition Brake Kit (Rear) – CP9450/340mm – ENP Finish – S550/S650 Mustang
CP9450 / 340mm Rear Competition Brake Kit
Complete the ultimate brake setup with the CP9450 rear kit for the S550/S650 Mustang. 4-piston Radi-CAL calipers with 340mm two-piece floating discs deliver balanced, fade-free braking.
Engineered Without Compromise
The Essex AP Racing CP9450/340mm rear brake kit is the perfect complement to any Essex front brake upgrade. The CP9450 4-piston Radi-CAL caliper is purpose-built for rear axle duty, providing the precise brake balance needed for maximum performance.
With 340mm two-piece floating discs and Essex Pagid RS29 pads, this rear kit dramatically improves rear brake performance while reducing unsprung weight. Achieve perfectly balanced braking from corner entry through apex.
Why Choose This Kit
AP Racing Performance
World-class braking technology trusted by professional racing teams worldwide. The CP9450 caliper delivers exceptional stopping power and pedal feel.
Competition Proven
Designed and manufactured by AP Racing in Coventry, England. Every component is engineered to meet the demands of both track and street driving.
Direct Bolt-On
Complete bolt-on kit requires no permanent modifications to your vehicle. Designed specifically for the S550/S650 Mustang platform.
ENP
Electroless nickel plating - jewel-like finish that won't chip, flake, or fade at extreme track temperatures. Same coating used on military targeting systems.
Complete Kit Contents
- AP Racing Calipers (pair)Fully assembled with dust boots and bleeder screws
- Mounting BracketsCNC-machined billet aluminum, vehicle-specific
- Brake Discs (pair)Two-piece floating assembly with aluminum hats
- Brake Pads (set)Competition-grade friction material, pre-chamfered
- Parking Brake HardwareMaintains OEM electronic parking brake function
- Stainless HardwareAll necessary bolts, washers, and fasteners
- Installation GuideDetailed step-by-step instructions with torque specs
Technical Specifications
Vehicle Compatibility
Engineered for the following platforms:
Important Notes
Minimum 18-inch wheels required for rear kits. Please verify clearance with your specific wheel specs before ordering.
Professional installation recommended. Typical install time is 2-3 hours per axle.
New pads and discs require a proper bedding procedure. Follow the included Essex bedding instructions for optimal performance and longevity.
This kit is compatible with the OEM electronic parking brake system.
Essex recommends high-performance DOT 4 brake fluid (sold separately). Fluid should be flushed before installing new components.
Ready to Transform Your Braking?
Questions about fitment or installation? Our brake specialists are here to help.
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