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!

$47.16
Pipe Shields solve the problem of needing spot heat protection for exhaust pipes and components. Extreme heat can rob power and potentially damage engines, transmissions, hoses, and sensitive electrical components. DEI, a market leader in thermal...
$66.92
Pipe Shields solve the problem of needing spot heat protection for exhaust pipes and components. Extreme heat can rob power and potentially damage engines, transmissions, hoses, and sensitive electrical components. DEI, a market leader in thermal...
$87.79
Pipe Shields solve the problem of needing spot heat protection for exhaust pipes and components. Extreme heat can rob power and potentially damage engines, transmissions, hoses, and sensitive electrical components. DEI, a market leader in thermal...
$41.14
Pipe Shields solve the problem of needing spot heat protection for exhaust pipes and components. Extreme heat can rob power and potentially damage engines, transmissions, hoses, and sensitive electrical components. DEI, a market leader in thermal...
$38.00
Exhaust Wrap Kits solve the problem of knowing exactly what you need to wrap exhaust pipes and manifolds and dose it in an all-in-one kit. DEI Pipe Wrap is used in many types of applications for reducing unwanted and harmful heat under the hood and from...
As low as $28.57
Titanium™ Protect-A-Sleeve solves the problem of burning, cracking plug wires, lines & hoses from engine & exhaust heat. DEI's Titanium Protect-A-Sleeve with LR Technology™ offers the best possible line sleeve protection on the...
As low as $22.74
Ultra 47™ Sheath line sleeve has a higher sustained heat capacity of up to 1100°F and is more flexible and light weight that standard foil or bonded aluminum products. Ultra 47™ thermal heat sheath is constructed from a process that...
As low as $80.90
Boom Mat Undercarpet™ (UC™) is a second layer sound deadening and insulation mat that will help you maintain a quality ride experience by preventing unwanted noise from being transferred into the vehicle’s interior. In addition to its sound deadening...
As low as $50.07
Under Carpet Lite solves the problem of engine, exhaust and road heat soaking into interiors. Under Carpet Lite is a superior sound decoupling material for those hard to cover areas like door liners, rear decks, headliners and more. Under Carpet Lite,...
$92.45
DEI's Under Hood Thermal Acoustic Lining was designed primarily for automotive engine compartments as a way to greatly reduce heat and noise with a simple and easy peel and stick application. Extreme engine heat and noise often is a problem with today's...
$25.21
Universal Catalytic Converter Shield solves the problem of missing catalytic converter heat shields. It prevents possible fires and is less expensive than replacing the entire converter when all you need is the shield. Replace your missing or rattling...
$35.36
Versa Shields™ solve the problem of failing starters and other components due to heat soak. Versa Shield was designed to protect starters from potential failure caused by under hood heat soak conditions. Constructed using an aluminized heat...
As low as $532.05
CryO²™ is a revolutionary product designed to reduce air and fuel temperatures thus creating power. Through the science of aerodynamics and cryogenics, Design Engineering has developed a system to harness the cryogenic properties of liquid...
$389.61
Design Engineering's next generation method of chilling the temperature of fuel before entering the intake stream - the CryO² Fuel Chiller System! The new CryO² Fuel Chiller System uses the cryogenic properties of liquid CO² to charge a...
$702.92
The CryO² Intercooler Sprayer Kit includes everything needed to enhance the intercooler's thermal transfer ability and improve its efficiency by as much as 50%. Kit includes 10 lb. tank and brackets, Cryogenic solenoid valve, 14 ft. stainless...
As low as $197.65
The CryO²™ patented* Air Intake consists of an aerodynamically designed bulb with a cryogenic chamber which is mounted in a short segment of air tube. Air is cooled as it passes over the bulb, resulting in a cooler, denser, more powerful...
As low as $110.61
CryO²™ Intercooler Sprayers mount directly to the front of air-to-air intercoolers and serves as a way to vent the liquid CO₂ directly onto the cooling fins thus, enhancing the performance of the intercooler by more than 50% eliminating...
$107.61
DEI's CryO² Intercooler Water Sprayer Kit was designed to be used by itself or in conjunction with DEI's CryO² Intercooler Sprayers as a way to supercool intercoolers. By wetting an intercooler's surface with the Water Sprayer and...
As low as $37.16
Kit includes necessary components to mount a wide open throttle switch. Universal mounting bracket included to allow for multiple mounting angles. Arming switch and purge switch also are included in this kit.
As low as $12.76
A purge blast of CO₂ will turn heads, command attention and crank up the wow factor a few notches. Some suggested mounting locations for a CryO² single or dual purge valve include hood scoops, front grille, air vents and fender wells - anywhere...