Fits 2006-2013 C6 Corvette Z06s;Fits 2009-2013 C6 Corvettes ZR1s;Includes front (CBK556) and rear (CBK567) control arm bearing kits;Machined 6061 billet aluminum bearing cups;Heavy-duty spherical bearings;Replaces the factory upper and lower control arm bushings in the front and rear;Eliminates control arm bushing deflection;Significantly reduces wheel hop;Dramatically increases suspension control;Greatly improves steering feel and stability;Available black anodized for a durable finish;5-6 hour installation time;Proudly designed in the USA!;Proudly made in the USA!