The PowerStop Evolution drilled & slotted rear rotor pair for 2017–2018 Honda Civic Si is a direct replacement upgrade to improve heat dissipation and maintain braking performance in demanding driving. Cross-drilled holes boost cooling and rounded slots clear gasses and debris to preserve pad-to-rotor contact. Zinc plating protects against rust, the rotors meet OE tolerance for runout and DTV, and they are sold as a dynamically balanced pair for bolt-on fit.
Power Stop 17-18 Honda Civic Si Rear Evolution Drilled & Slotted Rotors - Pair