The product is a lot of 7 OEM engine nuts specifically designed for 1988 Pontiac Firebird and Chevrolet Camaro vehicles. Manufactured by General Motors in Canada, these nuts have a manufacturer part number of 11508279 and a superseded part number of M8x1.25. This product is not a vintage part and does not have a universal fitment. It does not come with any performance enhancements and includes a California Prop 65 Warning for cancer and reproductive harm. These engine nuts are a crucial component for maintaining the proper functioning of the engine in these specific vehicle models. Exact item lot is shown. Genuine GM parts. New old stock with original packaging in fair condition. Exact item lot is shown. M8x1.25. For 1988 F platform (Chevrolet Camaro and Pontiac Firebird) and possibly other years. No returns on installed items or partial lots. Made in Canada. M8x1.25. Likely fits many other GN vehicles. No returns on installed items or partial lots. Made in Canada.