Stage 6 Iron Buttons, 6-Puck Rigid Clutch Kit by Action Clutch The unsprung hub is extremely lightweight and provides instant engagement. Equipped with iron buttons which provides higher capacity in power. The clutch features a significant increase in pedal pressure, aggressive engagement, rapid heat dissipation, and outstanding holding capacity. Features Single dual clamp diaphragm *RIGID* with Iron puck Clutch System. 200-400% Increase in holding capacity. Pedal Feel is Heavy with Aggressive Engagement. Dual clamp load heavy-duty pressure plate Engineered for dedicated high horsepower race vehicles. Increased torque capacity when using iron formulated clutch disc. Please Note: Recommended for race use applications only. Not recommended for daily use. Clutch chatter is normal on these types of clutch kits, increased gear rattle. Applications 2004-2016 Subaru STI 6MT What\’s In The Box? 1 – Iron Button 6-Puck Rigid Disc 1 – Heavy Duty Pressure Plate 1 – Bearing Kit Warranty Manufacturer Standard Warranty