Design Engineering, Inc (DEI), suppliers of thermal tuning products, offer the full line of DEI, CryO2, Boom Mat, Ny-Trex, Radiator Relief and SPA Turbo products 

DEI, Design Engineering, Inc.

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DEI Heat Sheath GOLD™

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Starting at: $18.95

DEI Heat Sheath GOLD™ is manufactured from high temperature Metalized Polyimide lamination, bonded to a robust 20oz. heat treated glass fiber base material. Learn More...

DEI Heat Shroud Gold™ 010458

DEI 010458
$46.95
DEI Heat Shroud Gold™ Fits 1/2" - 1 1/4" ID x 36" long Learn More...

DEI Mini Versa Shield™ Starter Shield 010384

DEI 010384
$18.95
DEI Mini Versa Shield™ Starter Shield, 500 F Radiant Heat Resistance: 2000 F, 5.25" W x 16.5" L Universal. Learn More...

DEI Cooling System Additive

Starting at:

Starting at: $21.99

Design Engineering Inc. Cooling System Additive Learn More...

DEI CryO2 Cryogenic Air Intake

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Starting at: $136.99

DEI CryO2 Cryogenic Air Intake Learn More...

DEI CryO2 Intercooler Sprayers

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Starting at: $78.99

DEI CryO2 Intercooler Sprayers Learn More...

DEI Design Engineering Inc Cool Tape™

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Starting at: $15.99

DEI Design Engineering Inc Cool Tape™ Learn More...

DEI Design Engineering Inc Exhaust Wrap

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Starting at: $31.99

DEI Design Engineering Inc Exhaust Wrap Learn More...

DEI Fire Wrap 3000

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Starting at: $54.99

DEI Fire Wrap 3000, Constructed from the same material as Fire Sleeve but with the convenience of a hook & loop edge closure design. Simply wrap Fire Wrap 3000 around wires, cables or hoses without Learn More...

DEI Heat Sheath Aluminized Sleeving

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Starting at: $13.99

DEI Heat Sheath Aluminized Sleeving Learn More...

DEI Protect-A-Boot and Wire Kits

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Starting at: $24.99

DEI Protect-A-Boot and Wire Kits, Each kit includes everything needed to protect spark plug boots and wires from harmful under hood heat. Color matched Protect-A-Boots™, Protect-A-Wire™ and Learn More...

DEI Protect-A-Boots

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Starting at: $16.99

DEI Protect-A-Boots are made from a high temperature resistant glass fiber material and treated with a proprietary coating, Protect-A-Boots provide spark plug boot and wire protection from extreme Learn More...

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