EBC Brakes S9KF1121 S9 Yellowstuff Brake Pad & USR Slotted Rotor Kit

The EBC Brakes S9KF1121 S9 Kit combines EBC's flagship Yellowstuff high-friction brake pads with fine-slotted USR sport rotors into a complete, cost-effective brake upgrade. Bundling all necessary components into a single kit delivers savings over purchasing the pads, rotors, and caliper lube separately.

Yellowstuff Brake Pads:

• GG-rated high-friction compound engineered for maximum stopping power under heavy street and spirited driving conditions
• Fully shimmed, chamfered, and slotted for optimized performance and reduced noise
• Finished with EBC's patented Brake-in™ coating for rapid pad seating and faster bed-in right out of the box

USR Sport Slotted Rotors:

• Fine-slot design reduces wind noise — a key advantage over the S5 kit's plain-face rotors
• Slots promote faster rotor cooling and continuously wipe the pad surface clean for optimal pad-to-rotor contact
• Thermic Black anti-corrosion coating provides long-lasting rust resistance; no removal required before installation — coating naturally wears away in the pad-swept area within the first 10–20 stops
• Fully balanced and run-out tested for a smooth, vibration-free braking experience

Kit Includes:

• EBC Yellowstuff brake pads
• EBC USR sport slotted rotors
• Caliper lubricant

Installation Note: Do not fit upgraded pads to the rear axle only — if upgrading the rear, the same upgrade must also be fitted to the front. Do not use brake cleaner or any other method to remove the Thermic Black rotor coating, as doing so is not covered under EBC warranty.