Fits 2006-2013 C6 Corvette Z06s;Fits 2009-2013 C6 Corvette ZR1s;Includes front (CBK551) and rear (CBK562) control arm Delrin bushing kits;Internally-fluted, greaseable Delrin bushings;6061-aluminum inner sleeves;Replaces the factory upper and lower control arm bushings in the front and rear;Eliminates control arm bushing deflection;Significantly reduces wheel hop;Increases suspension control;Improves steering feel and stability;Available black for a durable finish;5-6 hour installation time;Proudly designed in the USA!;Proudly made in the USA!