DEI Protect-A-Boot Sleeve - 1-1/4in I.D. x 6in - 8-pack - SilverProtect A Boot Ringless Sleeves are superior protection for extreme angled plug wire boots that solve the problem of burning and cracking plug boots and wires from header and engine heat. DEI Protect A Boot Ringless Sleeves are uniquely designed to protect spark plug boots & wires against the harmful effects of direct and continuous heat up to 1200F. Continued exposure to extreme heat generated from the engine block, exhaust manifold and headers can