Procharger 2016+ Camaro SS 8 rib crank pulley (7.65" diameter) to be used with the ATI Performance Products balancer part # 918856.
* This 7.65-inch crank pulley is also compatible with 2004–2006 Pontiac GTO ProCharger kits. Its larger diameter provides increased boost levels compared to the standard 7.0-inch GTO crank pulley.