Fits 2006-2013 C6 Corvette Z06s;Fits 2009-2013 C6 Corvette ZR1s;Heavy-duty camber lockout plates;Laser-etched plates allow for easy camber adjustments;Includes Grade 8 and 10.9 hardware for the ultimate in strength;Replaces the factory eccentric cams on the lower control arms of your Corvette with lockout plates to prevent changes in alignment on the street and track;Allows for camber adjustments from -2.1 to +1 degrees;Improves alignment adjustability;Increases suspension control;Available black anodized for a durable finish;3-4 hour installation time;Proudly designed in the USA!;Proudly made in the USA!