The Design Engineering V8 Titanium Protect-A-Wire Kit provides heat protection to exposed spark plug wires. Using the same material as DEI’s titanium exhaust wrap and plug boots, the oil and chemical resistant sleeving material withstands temperatures up to 1,800 degrees F direct heat or 2,500 degrees F radiant. The kit includes 25' of 1/2" ID titanium sleeving, eight high-heat shrink tube ends and 16 high-temp shrink tube ends, which include two of each numbered one through eight to ensure plug wires are connected to the correct cylinder.