The Competition Clutch Stage 4 Sprung * Strip Series 1620 Clutch Kits provide up to 250% increase in torque capacity. The six-puck high torque sprung disc with Ceramic buttons is good for penetrating engagement with higher horsepower applications. The 1620 Series kits include a Competition Clutch performance pressure plate, 6 puck torque sprung disc with Ceramic buttons, throw out bearing (where applicable), pilot bearing/bushing (where applicable), and alignment tool. Subaru: Baja 06 - 06 2.5 L Engine, Subaru: Forester 06 - 08 2.5 L Engine, Subaru: Impreza 06 - 14 2.5 L Engine, Subaru: Legacy 07 - 12 2.5 L Engine, Subaru: Outback 06 - 09 2.5 L Engine, Subaru: WRX 12 - 16 2.5 L Engine, Subaru: WRX STI 13 - 17 2.5 L Engine