The FX350 System uses the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc. This clutch is designed for the street enthusiast or weekend racer who plans to abuse their vehicle on an occasional basis and have a spirited driving style. The FX350 clutch system has a higher holding capacity than a segmented Kevlar lining without compromising the street friendly characteristic Clutch Masters is known for. For year’s enthusiast have had to compromise durability for drivability and vise versa, however with Clutch Masters New Formula button we have closed the gap between these two tradeoffs. PartNumber : cm15017-HDFF Description : FX350 Clutch Kit; Heavy Duty Pressure Plate; Sprung Hub Fiber Tough Lined Disc 2004-2014 Subaru Impreza WRX STI H4.2458cc Drivetrain::Clutch Kits - Single 2007 Subaru Impreza WRX STI Limited H4.2458cc Drivetrain::Clutch Kits - Single 2011-2014 Subaru Impreza WRX STI Limited H4.2458cc Drivetrain::Clutch Kits - Single 2010 Subaru Impreza WRX STI Special Edition H4.2458cc Drivetrain::Clutch Kits - Single 2007-2009 Subaru Legacy GT spec.B H4.2458cc Drivetrain::Clutch Kits - Single 2015-2017 Subaru WRX STI Base H4.2458cc Drivetrain::Clutch Kits - Single 2015 Subaru WRX STI Launch Edition H4.2458cc Drivetrain::Clutch Kits - Single 2015-2017 Subaru WRX STI Limited H4.2458cc Drivetrain::Clutch Kits - Single 2016 Subaru WRX STI Series.HyperBlue H4.2458cc Drivetrain::Clutch Kits - Single