Power Stop K2391-26 1-Click Street Warrior Z26 Rear Brake Kit Components are engineered to handle the increased demand of high horsepower cars and modified vehicles. Dust-free braking performance. Premium stainless steel shims provide better heat dissipation for improved stopping power with virtually no noise Drilled and slotted rotors keep your brakes cool even in the most extreme conditions Designed as a performance bolt-on upgrade for stock brakes, without sacrificing everyday drivability