DEI

Protect expensive spark plug wire sets from potential burning, cracking, and hardening typically caused by severe under hood heat. Easily installs on wire by removing distributor boot and sliding...

Protect expensive spark plug wire sets from potential burning, cracking, and hardening typically caused by severe under hood heat. Easily installs on wire by removing distributor boot and sliding...

Protect expensive spark plug wire sets from potential burning, cracking, and hardening typically caused by severe under hood heat. Easily installs on wire by removing distributor boot and sliding...

DEI Protect-A-Wire kits provide thermal protection for expensive spark plug wire sets. Protect your wires from potential burning, cracking, and hardening typically caused by severe under hood heat...

DEI Protect-A-Wire kits provide thermal protection for expensive spark plug wire sets. Protect your wires from potential burning, cracking, and hardening typically caused by severe under hood heat...

DEI Protect-A-Wire kits provide thermal protection for expensive spark plug wire sets. Protect your wires from potential burning, cracking, and hardening typically caused by severe under hood heat...

DEI Protect-A-Wire kits provide thermal protection for expensive spark plug wire sets. Protect your wires from potential burning, cracking, and hardening typically caused by severe under hood heat...

Titanium(TM) 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(TM) offers the best...

High performance Quick Fix Tape bonds to itself and is self-curing, forming a waterproof permanent seal. It's ideal for emergency hose repair, non-slip grip surface for tools, electrical splices and...

Radiator Relief(TM) 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...

Radiator Relief(TM) 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...

Chill Charger for water-to-air intercoolers maximizes thermal transfer to lower air intake temperatures while also protecting core corrosion, electrolysis and harmful mineral build up. By effectively...

Radiator ReliefÂ(TM) 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...

Radiator Relief(TM) 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...

Heater Hotter(TM) solves the problem of slow warm up times and waiting for your vehicle to thaw in winter months. Heater Hotter formulated specifically to accelerate the transfer of heat from engine...