EBC S20K1666 Stage 20 Ultimax Brake Pad and RK Rotor Kit - Front and Rear

The EBC S20K1666 Stage 20 Kit is a complete two-axle brake system refresh, bundling Ultimax brake pads and RK plain rotors for both the front and rear axles — plus caliper lubricant — at a savings over purchasing each component separately.

Ultimax Brake Pads:

• Constructed with aramid fiber for high efficiency and long-lasting performance
• Fully shimmed and chamfered to minimize brake noise and vibration
• Features EBC's patented Brake-In™ coating applied to the pad surface, accelerating the bed-in process immediately after installation for confident stopping right away

RK Series Rotors:

• Direct-fit OEM replacement dimensions for straightforward installation
• Coated with a Geomet anti-rust surface treatment to resist corrosion and extend rotor life
• Fully balanced and runout-tested from the factory to ensure smooth, vibration-free braking
• Cast from high-quality grey iron for reliable thermal performance and durability

Why Replace Front and Rear Together?

Maximum braking performance depends on all four corners working in unison. The rear brakes contribute up to 40% of a vehicle's total stopping power — making them just as critical as the fronts. Replacing both axles simultaneously with a matched pad-and-rotor set ensures balanced, optimized braking performance across the entire system.

What's Included:

• Front brake pads (Ultimax)
• Rear brake pads (Ultimax)
• Front rotors (RK Series)
• Rear rotors (RK Series)
• Caliper lubricant