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EBC S9KF1055 S9 Yellowstuff Brake Pad & USR Slotted Rotor Kit

(2021 Audi A4 Quattro; 2017-2020 Audi A4; 2001-2003 Audi S8; 2021-2022 Audi A5 Sportback; 2014-2016 BMW 528i)

Manufacturer

Part Number

S9KF1055
Sale Price

$541.92

Estimated ship date Sunday, November 22

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The EBC Brakes S9KF1055 S9 Kit combines EBC's flagship Yellowstuff high-friction brake pads with USR sport slotted rotors into a single performance brake upgrade package. This kit offers a 15% savings compared to purchasing the pads and rotors separately, and delivers a noticeable upgrade over the S5 kit thanks to the fine-slotted USR rotors that help reduce wind noise during operation.

Key Features:

  • EBC Yellowstuff Brake Pads — GG-rated high-friction compound engineered for maximum braking performance and stopping power
  • Fully shimmed, chamfered, and slotted pad design for quieter, more consistent brake performance
  • EBC Brake-In coating — Patented fast-bedding surface treatment applied at the factory for quicker pad seating right out of the box
  • USR Sport Slotted Rotors — Fine-slotted rotor design improves pad degassing, reduces wind noise, and provides a cleaner, more responsive brake feel compared to standard rotors
  • Caliper lubricant included — Everything needed for a complete brake service in one convenient kit

The S9KF1055 is an ideal solution for drivers seeking a significant improvement in braking performance over stock components. The Yellowstuff compound is particularly well-suited for high-demand street and track-day use where confident, fade-resistant stopping power is essential.

Products specifications

Fits

2021 Audi A4 Quattro; 2017-2020 Audi A4; 2001-2003 Audi S8; 2021-2022 Audi A5 Sportback; 2014-2016 BMW 528i

Position

Front

Prop 65

No

Rotor Diameter - MM

345

PCD - MM

112

solid or vented

V

Kit Components

DP41327R, USR1427

Height - MM

60

New Thickness - MM

30

Number of Bolt Holes/Studs

5

Minimum Thickness - MM

28

Center Hole Diameter - MM

68

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