Heatshield Products 400804 Insul-Boot Black 1" ID x 6" Long Spark Plug Boot Heat Shield - High-Temperature Protection for Automotive Engine, Racing & Performance Vehicles

Spark plug boot heat socks, protect your expensive plug wire set's performance and increase their lifetime. Insul-Boots prevent misfires caused by plug-wire burnout. This helps prevent critical engine damage and loss in performance. This spark plug boot heat shield, feature double wall construction provides superior protection. Special heat coatings allow these spark plug boots heat shields to reflect and dissipate heat. Insul-Boots are available in six ceramic colors-red, blue, black, tan, yellow and orange and withstand up to 1200F. The universal design fits most boots-even 90 degrees. Easy installation: place ring side on end of spark plug boot and slide the wide end towards the wire, ring side of Insul-Boot should rest between cylinder head and top of plug boot.