Hyper Single Disc Assembly – Sprung Center Disc by Exedy EXEDY Replacement Parts are the essence of the commitment to quality that comes with every EXEDY product. As friction products, there will always be parts that wear. However, the quality that goes into every part we make ensures that they can be rebuilt and used over and over even with constant abuse EXEDY offers a full range of replacement parts for all Stage 1, Stage 2 and Hyper Series clutches. This includes; friction discs, pressure plates, clutch covers, flywheels, intermediate plates and much more. Essentially, every component of every kit should be available if you need to replace it. Features Disc Diameter (Inches): 8.9 Disc Diameter (Millimeters): 225 Spline Count: 24 Spline Size (Inches): 1 Spline Size (Millimeters): 25.2 Applications 2004-2014 Subaru Impreza 2015-2016 Subaru WRX STI 2006-2009 Subaru Legacy What\’s In The Box? 1 – Hyper Single Disc Assembly Warranty Exedy 60-Day Limited Warranty