XTD 6 puck "MIBA" Copper Ceramic clutch is designed for the serious enthusiast considerable modifications.("Miba" Copper Ceramic Material is well known for AirCraft brake material.It is more Durable and hold 60% more Torque capacity than Cabontic or Kevlar Material also "MIBA" Disc grips 30% harder than Cabontic Disc) This disc features 12 high-coefficient ceramic pads for quick engagement and the extreme duty friction needed. Our specifically designed high torque disc delivers maximum holding capacity without compromise. The sprung retainer assembly boasts 6 dual springs and 6 severe duty retainer rivets, ensuring power and reliability.This XTD Stage 4 Clutch Kit Includes XTD Extreme Pressure plate (2600ft/lbs Clamping force),XTD"MIBA" 6 Puck Copper Ceramic Disc, Throw out Bearing,Clutch Alignment Tool,XTD 9lbs Ultra Lite Chrome-moly Flywheel,XTD clutch Installation Guide & XTD Logo Window Decal.This XTD Pressure plate Holds 60% more HP and Torque Than Stock Pressure Plate and This Pressure plate is made from ductile iron and heat Treated Which is about 65% Stronger Than Just Stock Cast Iron Pressure plate. XTD Stage 4 Copper Ceramic Disc is designed for Ultra Racing Purpose and it Graps Much Harder Than Just Stock Organic Disc also It will Increased Acceleration.However,It designed also Smooth Engagement and improved durability for Street so It won't make you difficulty on Daily Driving. This Stage 4 clutch and flywheel combo kit is perfect set up for drift and drag racing.