The Power Stop K179 is the rear-axle pad-and-rotor package from PowerStop's Z23 Evolution Sport line, built for the 08-12 Infiniti EX35. The Z23 Evolution Sport kit uses Carbon Fiber Ceramic Pads with Drilled and Slotted Rotors, so the pads and rotors come matched as one set instead of being sourced separately. It is aimed at daily driving and occasional spirited use rather than race-only service.
Compared with stock rear pads, the case rests on lower dust and better heat tolerance. The manufacturer describes the low-dust formula as a way to keep wheels cleaner. Owners on user forums report that the PowerStop pads and rotors are great, but only once they are bedded in properly. A skeptical enthusiast also argues that drilled/slotted rotors are not worth the expense for less aggressive drivers, so this kit makes the most sense for hard street driving or occasional track use. Owners on user forums have described a snap or pop from cross-drilled rears on some vehicles, which is worth knowing before you buy.
The manufacturer sells a separate Z23 Evolution Sport version that includes powder coated calipers. This pad-and-rotor kit is the version to choose if you are keeping your current rear calipers.
Yes. The manufacturer says break-in is critical for performance. The procedure calls for a set of moderate stops from 35 mph to 5 mph, followed by a cooling drive before returning to normal use. Expect a resin smell during the break-in.
The kit is designed as a bolt-on upgrade and includes the stainless-steel hardware needed for installation. Work one side at a time so the untouched side stays available as a reference. Before you start, owners on user forums recommend bleeding the brake fluid so the system is fresh. After installation, do the manufacturer's break-in carefully. Do not hold the pedal down while the rotors are hot, because that can imprint the pads onto the rotors and contribute to judder. Procedures differ between Z23 kits, so follow the sheet included in your box.
