Tesla Model 3 and Model Y – BFB Carbon Ceramic Rear Big Brake Kit
$6,295.00 $5,350.75 - $6,295.00
Our Tesla Model 3 and Model Y BFB Carbon Ceramic Rear Big Brake Kit brings the magic of our BFB Front Kit, to the rear! Jump up from the small 13″ stock rotor to these giant 15″ carbon rotors, while dropping almost 3 lbs of unsprung weight per corner. The combination of increased effective radius of the clamping force multiplies the torque that the brake system can exert to slow your vehicle and is, therefore, a perfect combination to pair with a front big brake kit and high-performance tires.
Note: 20″ wheels are required to fit over this rear big brake kit
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Product Details
The perfect complement to the BFB Carbon Ceramic Front Big Brake Kit for Tesla Model 3 and Model Y, the Unplugged Performance BFB Carbon Ceramic Rear Big Brake Kit
Our Tesla Model 3 BFB Carbon Ceramic Rear Big Brake Kit brings the magic of our BFB Front Kit, to the rear! Jump up from the small 13″ stock rotor to these giant 15″ carbon rotors, while dropping almost 3lbs of unsprung weight per corner. The combination of increased effective radius of the clamping force multiplies the torque that the brake system can exert to slow your vehicle and is, therefore, a perfect combination to pair with a front big brake kit and high-performance tires.
- 15″ rear rotor with a floating disk for improved brake clamping force and larger thermal capacity
- 9.5% lighter than the stock 1-piece rear rotor (2.7lbs) including all hardware and better efficiency
- Carbon-carbon friction not only provides fade-free operation at high temperatures but also vastly reduced pad wear
- OEM functionality for parking brake and stability control systems
- 20″ or larger wheels are required to clear these massive rotors
A NOTE ON BRAKE FLUID & HIGH-PERFORMANCE DRIVING
Brake fluid plays a vital role in the performance and reliability of every brake system, especially so in high-performance driving. A professional brake bleed with high-performance fluid is a requirement for the functionality of our brake system. We recommend using Motul RBF 660 (our go-to fluid) or Endless RF-650 brake fluid. Brake fluid should be flushed frequently for race cars in particular because over time moisture content builds and moisture inherently decreases the temperature limit of the brake fluid.
Brake fluid and its temperature capabilities of it matter especially due to the high temperatures the heavy and powerful Model S generates. The higher temperatures are seen in the brake system transfer heat to the brake fluid and when the brake fluid boils those bubbles create air in the brake lines. Air in the brake lines from the boiled fluid can create a near-instant loss of the brake pedal. Therefore, using a high temp brake fluid and managing brake heat is a key to safe braking for extreme environments.
Loss of pedal is a different symptom than brake fade and typically a symptom of brake fluids exceeding their temperature range (or alternatively a leak in the system) whereas brake fade is often a byproduct of the brake pads exceeding the operating temperature range. In both cases, managing temperatures in a racing environment and adequate testing is typically found in motorsports drivers and are always strongly encouraged to get the best and most safe result. We flush our brake fluid after each race and we monitor caliper temperatures for these same reasons on our race cars.
Please always feel welcome to talk to our team if you have questions about motorsport use. For street driving the temperatures seen are significantly less and this plays a lesser role although the same fluids are suggested for street cars as well.
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Is this a DIY job or something to leave to a shop?
Between the carbon-ceramic rotors, the 20-inch wheel requirement, and the caliper and harness swap on non-Performance cars, this is a job for a competent brake shop, not a driveway first-timer. A proper brake bleed with high-performance fluid is required for the system to work correctly. We install it at our Hawthorne facility and can sort the non-Performance parts and bleed in one visit.
Should I run this rear kit alone or with a front big brake kit?
It is designed as the complement to the front carbon-ceramic kit, and the page frames it as the perfect pairing with a front BBK and high-performance tires. Running a big rear alone can upset front-to-rear balance. If you want a matched setup, the Iron 6-Piston Front Big Brake Kit is a natural front partner; if you run that iron front, keep its replacement PFC pads in mind as a service item.
What brake fluid does this kit require?
A professional brake bleed with high-performance fluid is mandatory for this system to function. We recommend Motul RBF 660, our go-to, or Endless RF-650. Fluid matters because heat transfers into it, and if it boils, the resulting air in the lines can cause a near-instant loss of pedal, which is different from pad fade. Flush it regularly, especially if you track the car.
Does carbon-ceramic keep the parking brake and stability control working?
Yes. The kit retains OEM functionality for the parking brake and stability control systems, so nothing on the car’s safety side is compromised by the swap. You get the braking and weight benefits of carbon-carbon without warning lights or a dead e-brake. That integration is part of why it is a bolt-on upgrade rather than a race-only conversion.
What makes carbon-ceramic worth it over a big iron rotor kit?
Carbon-carbon friction gives fade-free operation at high temperatures and vastly reduced pad wear, plus the huge unsprung weight saving. An iron big brake kit costs less and stops hard, but iron is heavier and wears pads faster under sustained heat. If you want the lightest, most heat-immune rear setup and pair it with a carbon front kit, the carbon-ceramic rear is the top of the range.
