Dixcel Type FC Brake Discs - Subaru WRX VA 15-21/Liberty GT 04-14/Forester XT 14-18/Levorg VM (Front, 316 x 30mm)High and stable friction performance discs Street use High performance use Race use FC type is a 8 curve slotted version of 6 straight slotted FS type. Newly designed 8 curved slots enable high friction : from cold application and stability under high brake load. Optimal shape, direction and number of the slots were chosen by repetitive tests with dynamometers and test cars. High carbon material and DIXCEL heat treatment are applied just like our