WinmaX WST Performance Slotted Brake Discs Mitsubishi 5-9 (1996-2008) 320mm diameter front pair. WinmaX brake rotors offer a performace upgrade over OE discs by using high quality castings and improved cooling to be able to handle more spirited driving on the street or track. Disc Specifications: Diameter (mm): 320 Height (mm): 43.5 Thickness (mm): 32 Minimum Thickness (mm): 29.8 Centre Hole (mm): 69 Stud Holes: 5 Weight (kg): 9.75