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. Stage 4: Clutch Kit: 1990-91 Geo Prizm, 90-91 Toyota Celica, 89-91 Corolla, 85-89 MR2 1.6L Geo: Prizm 90 - 92 1.6 L Engine, Toyota: Celica 90 - 91 1.6 L Engine, Toyota: Corolla 89 - 91 1.6 L Engine, Toyota: MR2 85 - 89 1.6 L Engine