1993-2002 Camaro/Firebird Coolant Overflow Tank CapCNC machined billet aluminum cap designed to fit snuggly on top of the stock coolant overflow tank cap on all 1993 2002 Camaros & Firebirds. The cap is milled on the back and you must re use your factory measuring stick which slides into the rubber piece then is inserted into a groove on the backside of the cap. Precision milled from a solid piece of aluminum to add a unique feature to your engine bay. Available in anodized black or machined aluminum.