DEI

Boom Mat(TM) Decoupling Washers are the best way to decouple bodies, gas tanks, fenders and more from engine and road vibrations. They are made fro...

DEI Hoodliner Insulation Kits are custom cut kits made from our Black Under Hood(TM) material. It controls engine heat and noise that is often a pr...

DEI Hoodliner Insulation Kits are custom cut kits made from our Black Under Hood(TM) material. It controls engine heat and noise that is often a pr...

Riding in a Jeep(R) is great fun except for the truck's propensity for interior noise that makes it difficult to engage in conversations or even en...

Heat Shroud(TM) solves the problem of heat and abrasions causing failure of lines, hoses and wires without the need to disconnect them. Heat Shroud...

Design Engineering is leading the way with the most advanced thermal acoustic kits for vehicle specific applications. Using our proven Under Carpet...

Design Engineering is leading the way with the most advanced thermal acoustic kits for vehicle specific applications. Using our proven 2mm damping ...

Design Engineering is leading the way with the most advanced thermal acoustic kits for vehicle specific applications. Using our proven Under Carpet...

Under Hood Insulation Kits are custom cut kits made from our Black Under Hood material. It controls engine heat and noise that is often a problem w...

Design Engineering is leading the way with the most advanced thermal acoustic kits for vehicle specific applications. Using our proven Under Carpet...

Boom Mat Sound Deadening Headliner is now available in uncut 75 in. x 54 in. sheets. This universal sound deadening interior foam is an adhesive ba...

Boom Mat Sound Deadening Headliner is now available in uncut 75 in. x 54 in. sheets. This universal sound deadening interior foam is an adhesive ba...

Design Engineering is leading the way with the most advanced thermal acoustic kits for vehicle specific applications. Using our proven 2mm damping ...

Boom Mat Speaker Baffles solve the problem of rattles and vibrations caused by speakers and protects the back of speakers from damage. Boom Mat Spe...

Boom Mat Tape has the same noise blocking and sound damping qualities as our Boom Mat damping material. It's for those hard to reach areas as well ...

Riding in a Jeep(R) is great fun except for the truck's propensity for interior noise that makes it difficult to engage in conversations or even en...

Riding in a Jeep(R) is great fun except for the truck's propensity for interior noise that makes it difficult to engage in conversations or even en...

Riding in a Jeep(R) is great fun except for the truck's propensity for interior noise that makes it difficult to engage in conversations or even en...

New Black Floor and Tunnel Shield solves the problem of blocking engine and exhaust heat while wanting a great, flexible, black finish. With a prop...

Trans Tunnel Plate Heat Shield blocks exhaust heat from coming through the transmission tunnel keeping interior cool and comfortable. A well known ...

Trans Tunnel Plate Heat Shield blocks exhaust heat from coming through the transmission tunnel keeping interior cool and comfortable. A well known ...

Boom Mat Speaker Baffles solve the problem of rattles and vibrations caused by speakers and protects the back of speakers from damage. Boom Mat Spe...

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 te...

We have come up with a solution for a common heat soak & vapor lock problem in Jeep models with inline 6 engines (1997-2004). DEI's Easy to ins...