EBC S4KR1427 Redstuff Rear Brake Pads & USR Rotors Performance Kit

Vehicle Fitment

• 2015-2019 Subaru WRX (2.0L Turbo, Rear Axle)

Fitment Notes

• Rear axle kit only
• 5-lug hub configuration required
• Not compatible with non-performance brake upgrade conversions

Features

• Redstuff ceramic brake pads with aramid fiber construction
• Low-dust compound designed for clean wheel performance
• USR slotted sport rotors for improved bite and cooling
• Thermic anti-corrosion rotor coating for long-term durability
• Direct OEM replacement fitment (no modifications required)
• Balanced and run-out tested rotors for smooth braking
• Chamfered and shimmed pads for reduced noise and vibration
• High heat resistance for spirited street driving

Specifications

• Rotor diameter: 285 mm (approx.)
• Rotor thickness: 10 mm discard specification
• Rotor construction: Vented, slotted design
• Wheel bolt pattern: 5-lug
• Position: Rear axle (left & right)

Included Components

• 2x Rear brake rotors (USR slotted)
• 1x Set rear brake pads (Redstuff ceramic compound)
• 1x Caliper installation lubricant

Product Description

The EBC S4KR1427 brake kit is a complete rear axle upgrade designed for drivers seeking improved braking performance with reduced dust and noise. It combines EBC's Redstuff ceramic brake pads with USR slotted sport rotors, delivering a balance of everyday drivability and enhanced stopping power under spirited conditions.

The slotted rotor design helps maintain consistent pad contact by clearing gases and debris, improving brake bite while maintaining cooler operating temperatures. Meanwhile, the Redstuff compound reduces brake dust significantly compared to OEM pads, helping keep wheels cleaner over time without sacrificing braking efficiency.

This kit is engineered as a direct replacement for compatible performance vehicles and installs without modifications. It is ideal for street-driven performance cars where reliability, smooth braking response, and reduced maintenance are priorities.