EBC Brakes S9KF1161 S9 Yellowstuff Brake Pad & USR Slotted Rotor Kit

The EBC Brakes S9KF1161 is a complete Stage 9 brake upgrade kit that pairs EBC's high-performance Yellowstuff brake pads with USR sport slotted rotors, delivering a significant upgrade over factory braking components. Purchasing this kit saves compared to buying the pads, rotors, and caliper lube separately.

Yellowstuff Brake Pads:

• GG-rated high-friction compound engineered for maximum stopping power
• Fully shimmed, chamfered, and slotted for reduced noise and optimized pad-to-rotor contact
• Coated with EBC's patented Brake-In™ coating for fast pad seating and quicker break-in
• Designed to deliver up to 30–40% improved braking performance compared to OEM pads
• Effective across a wide operating temperature range — ideal for spirited street driving and heavy-use applications

USR Sport Slotted Rotors:

• Fine-slotted design reduces wind noise compared to wider-slotted alternatives (an advantage over the S5 kit)
• Slots continuously wipe the pad face, removing dust, debris, and gases for consistent braking performance
• Slotting helps draw in cooler air, reducing rotor operating temperatures
• Thermic Black anti-corrosion coating provides long-lasting rust resistance — no removal required prior to installation
• Every rotor is fully balanced and run-out tested for vibration-free braking

Kit Includes:

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

Installation Note: Do not fit upgraded pads to the rear of the vehicle unless the same upgrade is also fitted to the front. The Thermic Black rotor coating does not need to be removed before installation — it will naturally wear away in the pad contact area within the first 10 to 20 stops.