Heavy duty pressure plate with steel-backed organic disc makes for smooth engagement. The Clutch Masters FX100 clutch is designed to be a dependable and economical alternative to BMW's OEM replacement. The FX100 is made for the daily driven 135/335s with basic bolt-on modifications. The Clutch Masters FX100 pressure plate offers 70% more clamping force over a stock BMW pressure plate. The 07-10 135/335 Clutch Masters FX100 disc is a steel-backed organic disc with the highest quality hub assemblies available to ensure durability and driveability.