These billet spark plug wire guides offer a clean alternative to the ignition wire dilemma by routing the wires in a simple straight-forward fashion. Their aluminum construction features a polished finish that will make your motor stand out while keeping the wires safely off the hot exhaust. They are a universal fit and should work with mostFits Ford, GM, and Fits Mopar V-8 engines. These billet wire looms feature adjustable tabs that attach to the base of the valve covers with their mounting bolts. Use up to 8mm wire on nearly any Fits V8 engine. Internal grooves conceal and divide spark plug wires up to 8 MM in diameter. Adjustable mounting tabs allow installation on nearly any Fits V8 engine. Polished aluminum. Smooth design.