The Power Stop Z23 Evolution Sport front kit (K2915) is a matched front axle package for the 2009-2013 Infiniti FX50. It combines drilled and slotted rotors with Z23 carbon-fiber ceramic brake pads and installation hardware, so you don't have to piece together pads and rotors from different sources. The kit covers the front axle only, so FX50 owners who want a full four-wheel upgrade will need a separate rear kit.
Compared with a pad-only swap, a pre-matched rotor and pad set keeps the friction surfaces designed to work together. The carbon-fiber ceramic compound is positioned as a lower-dust, quieter daily-driver option than a standard stock replacement. The drilled and slotted rotor surfaces are intended to help with heat management and to keep the pad contact area clear during repeated stops. Before ordering, confirm your FX50 trim and brake package, and use the manufacturer's installation documentation for torque values and bedding-in procedure. Search terms this kit matches include K2915 front brake kit, FX50 drilled slotted rotors, Z23 ceramic brake pads FX50, and 2009-2013 FX50 front brake upgrade.