Up for sale is an ignition wire set designed for the 8.1L V8 engine found in Chevrolet and GMC Silverado and Suburban models. The set is manufactured by Omnispark and includes multiple connectors, both male and female, with a 7mm insulation outside diameter made of silicone material. This product is not considered a vintage part and has not been tested for performance upgrades or modification. Please note that this product contains a chemical that may cause cancer according to the California Prop 65 warning. The product is unfinished and comes with no manufacturer warranty. The set is known by the manufacturer part number 9645 and has interchangeable part numbers of 924-2050, 748KK, 9766, and CH74215. The product is made in Mexico and is not designed for universal fitment. Thank you for considering this product.