Spark plug protective shroud for high power Rover V8 applications. High performance spark plug boot/sock fits over HT leads where they run close to the exhaust manifolds. Sold as a set of 8 high temperature material shrouds in gunmetal colour. These shrouds are now further enhanced and are slightly larger to give better coverage and are manufactured from Basalt which gives protection up to 900 degress celcius. Great product to protect the HT leads in the Rover V8 applications.