Heat Control

DEI is a pioneer in the automotive performance industry. Whether you're trying to make your ride run faster, better, more safely, or just trick it out, we've got the gear to make your ride rock!

¥5,024.96
Protect-A-Boots solve the problem of burning and cracking plug boots and wires from header and engine heat. Features: Made from a high temperature, nonflammable glass fiber material able to withstand temperatures up to 1000°F. Boots are of...
¥11,022.38
Protect-A-Boots solve the problem of burning and cracking plug boots and wires from header and engine heat. Each kit includes everything needed to protect spark plug boots and wires from harmful under hood heat. Color matched Protect-A-Boots,...
¥4,073.60
Protect-A-Boot™ 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™ Sleeves are uniquely designed to protect...
¥4,073.60
Protect-A-Boot™ 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™ Sleeves are uniquely designed to protect...
¥4,073.60
Protect-A-Boot™ 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™ Sleeves are uniquely designed to protect...
¥2,315.56
Protect-A-Boot™ 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™ Sleeves are uniquely designed to protect...
¥4,073.60
Protect-A-Boot™ 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™ Sleeves are uniquely designed to protect...
¥8,689.93
Protect-A-Boot™ 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™ Sleeves are uniquely designed to protect...
¥2,315.56
Protect-A-Boots solve the problem of burning and cracking plug boots and wires from header and engine heat. Superior Protection for Extreme Angled Plug Wire Boots DEI Protect-A-Boot™ Sleeves are uniquely designed to protect spark plug boots &...
¥2,183.57
Protect-A-Boots solve the problem of burning and cracking plug boots and wires from header and engine heat. Protect-A-Boots are made from a high temperature resistant glass fiber material and treated with a proprietary coating, Protect-A-Boots provide...
¥8,345.72
Protect-A-Boots solve the problem of burning and cracking plug boots and wires from header and engine heat. Protect-A-Boots are made from a high temperature resistant glass fiber material and treated with a proprietary coating, Protect-A-Boots provide...
¥1,017.87
Protect-A-Boots solve the problem of burning and cracking plug boots and wires from header and engine heat. Protect-A-Boots are made from a high temperature resistant glass fiber material and treated with a proprietary coating, Protect-A-Boots provide...
¥1,684.14
Quick Heat is specially formulated to get the heat from your engine into your heating system faster in frigid climates. Feel warmer faster and melt ice and frost from windows more quickly. Quick Heat is safe to mix with all types of anti-freeze. Simply...
As low as ¥1,052.72
Radiator Relief™ solves the problem of high engine temps by reducing coolant temperatures up to 30 degrees. Radiator Relief is an excellent method of treating cooling systems as a preventive step to help avoid overheating, electrolytic...
¥1,052.72
Radiator Relief™ Cooling System Flush is a concentrated cleansing agent that effectively removes rust and mineral deposits left behind in the radiator core and hose lines. This advanced treatment also dissolves oily residue build-up left...
¥1,052.72
Radiator Relief™ for Diesels supercharges your radiator by transferring heat more efficiently through the radiator. Similar to the original formula this proven coolant additive will reduce your operating temperature up to 30°F degrees and reduce...
¥42,230.12
Built to last many race seasons. The Sprint Car Thermal Engine Cover keeps the heat in your engine between races. Designed to be used on hot or even running engines without melting or damage. Outer layer is made from Durable PVC coated...
As low as ¥9,180.92
Designed for severe duty use, ONYX™ Starter Shield offers the highest level of protection for starters from potential failure caused by under hood heat soak conditions. Constructed of two layers of material, a highly reflective outer layer...
¥9,180.92
Designed for severe duty use, the Ultra 47™ Starter Shield offers the highest level of protection for starters from potential failure caused by under hood heat soak conditions. Constructed of two layers of material, a highly reflective outer layer...
¥1,013.65
Specially formulated to enhance cooling system performance by maximizing the thermal transfer ability of the coolant/water solution or plain water. Environmentally friendly TIG Chill is safe to use in all systems and with all types of coolants. Don't...