1960-68 Chevy Impala Power Disc Brake Kit Black Wilwood Calipers & Master. Dual Piston Wilwood Red Calipers (MKD-52 Brake Pads). Wilwood Black Tandem Oval Master Cylinder. Why Wilwood?. Forged billet aluminum bodies, stainless steel pistons, and competition style high-temperature seals put and end to the rust, bore pitting, and seal failures that plague the OE caliper design.