| PRODUCT DESCRIPTION For customers who require additional clamping power, AEM offers a Four-Piston Caliper Big Rotor Upgrade for select applications. This upgrade utilizes a durable mono-block Brembo caliper design that is pre-loaded with high-performance Porsche brake pads, and includes all of the features found in our Big Rotor Brake System EDO Reward Points : 2,395 points |