WE CONTROL HEAT & SOUND

For over 25 years, Design Engineering, Inc. has manufactured and distributed premium quality heat and sound control products worldwide. With a focus on engineering and customer satisfaction, we strive every day to bring you innovative and dynamic products that exceed your expectations. Trust DEI for all your Heat & Sound Control solutions.

AUTOMOTIVE

RACING, RESTORATION, PERFORMANCE

POWERSPORTS

VTWIN, METRIC, SXS, ATV/UTV

RV / MOTORHOME

SPRINTER VAN, CLASS A, CAMPERS

MARINE

POWER BOAT, SAILING, PWC

INDUSTRIAL

GOVERNMENT, MILITARY, MANUFACTURING

RESIDENTIAL

HVAC, HOME THEATRE

Customer Reviews

Floor & Tunnel Shield II

Great for bus conversions!

"I contacted DEI's customer service and asked what would be the best product to use, and this was recommended. They were a great help and this product was easy to work with. The engine cover is awkwardly shaped, but the tunnel shield was easy to cut and mold to how I needed it. If I need anymore products, this will be the first place I go to!"

- Lily

GEN-3 Onyx Turbo Shield

Great Quality

"Ludicrous speed shipping; somehow they got both my orders to me on the same day, in Japan, in less than a week from the time they shipped the items. Their customer service team is wonderful to work with as well. I've always trusted DEI and will continue to do so."

- Britton

Black Titanium™ Exhaust Wrap Kit

Worth the Money

"This kit is great - I was able to use it to wrap my 1973 Jeep CJ5 headers. I had been having issues with heat on my alternator and wires. This kit solved all that, and looks pretty badass under the hood. I have several friends that have used the same kit for their jeeps since seeing mine."

- Gebs