Fidanza Replacement Flywheel Friction Plates are constructed of incredibly strong 1050 high carbon steel and are pickled and oiled to deliver superior longevity and disc engagement. Each friction plate is heat-treated and meets high specifications for performance output. With Fidanza Replacement Flywheel Plates, there is no need to resurface or replace the entire flywheel when changing or replacing the clutch, saving both time and money. Designed specifically for use with Fidanza flywheels.