ACCEL Extreme 9000 Ceramic Single Wire Replacement Kits keep you from having to buy a whole new wire set every time one wire gets cut, burned, or broken. The ceramic spark plug boot comes already installed – all you have to do is cut the 8mm Extreme 9000 ceramic wire to length, install the distributor boot and terminal, and put it on. Ideal for use with headers or in cramped engine bays, this straight ceramic spark plug boot can withstand up to 2000 degrees. These kits make great replacements for the one damaged or cut wire. It allows you to build you own single replacment wire. The kit contains a 60" 8mm spiral core with boots and terminals for most different wire configurations. This kit is for a straight ceramic boot on the spark plug end.