Description
The new twin-turbo Nissan Z has plenty of power, and serious track days call for more brake than the factory setup. That is exactly why drivers choose to buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34: endurance-spec 6-piston CP9668 Radi-CAL calipers and 372 mm J-Hook discs, finished in durable ENP (electroless nickel plating), engineered to stay consistent when the brakes get hot.
Why Buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34 from Diamond Parts?
We stock performance brake systems from leading brands such as Endless, AP Racing, Alcon and StopTech. Compare more big brake kits, see our complete brakes collection, and read our shipping policy for delivery times.
Key Features
Here is what you get when you buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34:
- Designed by AP Racing as an endurance racing caliper
- 25 mm pad capacity means fewer pad changes at the track
- Stainless ventilated pistons control fluid heat
- Floating J-Hook discs resist cracking
- Compatible with the factory master cylinder and ABS
AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34 Specifications
| Product | AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34 |
|---|---|
| Brand | AP Racing by Essex |
| Product line | Radi-CAL CP9668 |
| Position | Front axle |
| Vehicle fitment | Nissan Z RZ34 |
| Caliper | AP Racing CP9668 Radi-CAL (Pro5000R), endurance version |
| Pistons | 6 stainless steel, domed and ventilated (27 mm, 31.8 mm and 38.1 mm pairs) |
| Pad thickness | 25 mm endurance pads (also accepts 18 mm); pads sold separately |
| Caliper weight | Approx. 6.8 lb each |
| Discs | 372 x 34 mm two-piece floating J-Hook, 72 directional vanes |
| Hats | 6061 billet aluminium, hard anodized, fully floating |
| Brake lines | Spiegler stainless steel |
| Wheel fitment | Fits inside many 18-inch wheels |
| Kit includes | Pair of calipers, pair of discs with hats and hardware, caliper brackets, brake lines, instructions |
| Finish | ENP (electroless nickel plated) |
| SKU | 2136485F |
Installing Your New Brake Kit
When you buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34 from Diamond Parts, the kit comes with vehicle-specific mounting brackets, so installation is a bolt-on job for an experienced mechanic or a well-equipped home garage. Bleed the system with fresh, high-temperature brake fluid, torque all caliper and bracket bolts to specification, and make sure the brake lines are routed clear of the suspension and wheels at full steering lock. Before the first drive, spin each wheel by hand to confirm there is no contact between the caliper and the inside of the rim.
Bedding In the Pads and Rotors
After you buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34 and fit it, the new pads and rotors need a proper bed-in to perform at their best. Start with a series of moderate stops from around 40 mph down to 10 mph, then follow with several firmer stops from higher speeds, avoiding coming to a complete stop while the brakes are hot. Finish with a gentle drive to let everything cool. This lays an even layer of pad material onto the rotor faces for smooth, quiet and consistent braking.
Choosing the Right Pad Compound
Before you buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34, think about how you drive. Street-focused compounds give quiet operation, low dust and good cold bite for daily driving, while track compounds hold up to much higher temperatures without fading. If your car sees both commutes and occasional track days, a dual-purpose pad is often the best compromise. Our team can recommend a compound based on how you drive, your tyres and your power level, so you get the most from your purchase when you buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34.
Maintenance and Care
When you buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34, plan a simple maintenance routine. Check pad thickness and rotor condition regularly, especially after track use. Replace brake fluid at least once a year, or before every track season, because fluid absorbs moisture and its boiling point drops over time. Clean the calipers with mild soap and water rather than harsh wheel cleaners to protect the finish.
To learn more about the engineering behind these components, visit the official AP Racing website.
Fitment and Compatibility
Designed for the Nissan Z RZ34. Exact fitment can vary with model year, trim and wheel design, so send us your VIN and wheel specification through our contact page and we will double-check everything before your kit ships.
Stop guessing and start braking later. Buy AP Racing CP9668 Radi-CAL ENP Front Brake Kit for Nissan Z RZ34 from Diamond Parts, or call (303) 418-3426 and we will help you choose the right setup.





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