RAM Clutches 1311 Pro Drag Racing Sintered Iron Disc is ready to install. RAM Clutches knows that Iron Discs are not created equal. RAM Clutches utilizes the 5191-Compound in this Sintered Iron Disc. The 5191-Compound allows the clutch to work, or 'slip' as needed in order to get the vehicle to launch smoothly without overpowering the tires. RAM Clutches has accrued a vast knowledge base through the extensive testing of various clutch discs and compounds available on the market today. Due to the consistency of the materials and repeatability in the tested clutch units, RAM Clutches exclusively utilizes Raybestos Discs. By using RAM Discs in conjunction with RAM Clutches the best performance possible is assured. Choosing RAM Clutches Pro Drag Racing Sintered Iron Disc ensures that the vast Tuning experience leveraged by RAM Clutches is included. RAM Clutches take the time to True, Back Cut and Diamond Tip Surface every disc to remove the time and effort of this additional work upon receipt of the Pro Drag Racing Sintered Iron Discs.