Corvette Valve Stem Cap – Black – 4 Pieces C7 August 5, 2014 AdminPerformance Parts & Accessories FEATURED Corvette Valve Stem Cap – Black – 4 Pieces C7 Corvette Stingray Valve Stem Caps Crossed-Flag Logo Black Background Make a dramatic modification to the appearance of your Corvette with these valve stem caps with crossed-flags logo.