The D1 Racing Stage 4 clutch kit utilizes a performance pressure plate paired with a solid-hub 6-puck ceramic disc. This is an excellent solution for high horsepower vehicles looking for a quick clutch engagement and hard launch--perfect for drag, drift, and track use. The ceramic material is lightweight and has, on average, a coefficient of friction 28% higher than that of organic discs. Our Stage 3 kits offer a 250% increase in torque capacity over stock systems. We recommend a 1000–KM break–in period.