DEI, America’s leading heat protection specialist, now has spark plug and wire protection kits to provide everything you need to protect the spark plugs and leads on a four-cylinder engine from harmful heat, cross-firing and moisture penetration while also creating a professional finished look.

The Four-Cylinder kits contain 13ft (3.96m) of line sleeving, twelve Hi-Temp Shrink Tubes, (to provide a water-tight seal), and four double-wall constructed Protect-A-Boots for the spark plugs.

The standard kit is ideal for engines that have their spark plugs close to either the exhaust system or turbocharger as the sleeving and boots will protect against heat of up to 1000°F (approx. 540°C). For engines that produce more extreme heat DEI also offers the Titanium Kit; made from lava rock (that’s what it says here, OK! – Ed).

This will protect from heat penetration up to 1800°F (approx. 980°C) thus making it ideal for endurance racecars and high-performance turbocharged vehicles. Both types of kit will provide increased high voltage insulation to protect against cross-firing between plug leads.

They will also protect spark plug boots and wires against burn-through and hardening and cracking. The Boot Protectors are universal and suitable for most straight, angled or long spark plug boots.

The standard Protect-A-Boot & Wire kits are available in Silver, Black, Red or Blue at £37.75 per kit plus import tax and shipping and will fit plug wires up to 8mm diameter. The Titanium Kit retails at £48.00 plus import tax and shipping and will fit wires up to 13mm in diameter.

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