Lingenfelter will be offering a new 9 bolt flange lightweight billet steel flywheel for the factory LS9 ZR1 engine. This flywheel is designed to give you the durability of a steel flywheel while reducing the rotating mass of the engine by 6.7 lbs. The flywheel is designed to accept the factory C6 ZR1 twin disc clutch pressure plate assembly and uses the factory ZR1 clutch actuator. We should have these in stock around December 18th. Click here to go to the LPE store.