• DEI Cruies In Photo Album


    The Inaugural DEI Cruise In took place over Father's Day Weekend and was a great success. We'd like to thank everyone that came out to support the event and invite everyone to check out the photos on or website and at Facebook.
    View The Album Now

  • DEI YouTube Channel


    The DEI channel on YouTube is the perfect place to learn installation techniques, tech tips and more information about the ever growing line of products from Design Engineering, Inc.
    View Channel

  • DEI sponsors the Hot Rodders of Tomorrow Competition


    DEI sponsored Hot Rodders of Tomorrow team to compete in engine challenge Semi-Finals at SEMA in Las Vegas November 3-5.
    Read More

  • DEI, CryO2, Boom Mat, Radiator Relief Catalog


    DEI's new full color catalog is packed with 48 pages of tested and proven thermal acoustic performance products with the flagship brands enthusiasts have learned to trust for quality and performance.
    Read More


    Check out the photo album follow the DEI Project Camaro from start to finish.
    Read More

  • Design Engineering Sponsorship Program: Team DEI


    The importance of grassroots marketing can never be underestimated. Design Engineering continues it's efforts of supporting local, national and international racer, project and show vehicle owners....
    Learn How to Join Team DEI

  • Buy NEW DEI Locking Tie Tool
  • Buy NEW DEI Titanium Protect-A-Boots spark plug boot protectors
  • Buy NEW DEI Quick Fix Tape
  • Puchase DEI Gasket Solution
  • Buy DEI Titanium Exhaust Pipe Wrap
  • Buy DEI Titanium Turbo Shield

Featured Article >>

Welcome to sticky icon

We at Design Engineering, Inc (DEI), one of the foremost suppliers of thermal tuning products, are very proud to welcome you to our website.  We have listened to our customer comments over the years and tried to incorporate all that we have learned from them.  Our goal with this site is to provide education and information on our products.  Please take note of such features as the language translation bar in the top right corner of every page and our social networking connections offer many options to stay connected with DEI.  We have improved our store finder to be more user friendly especially for Canadian and other international friends.

We now offer the full line of DEI, CryO2, Boom Mat, Ny-Trex, Radiator Relief and SPA Turbo products for sale directly from our online store. Make sure you’re on top of all the DEI news by subscribing to our DEI Newsletter. Don’t forget about our Twitter and Facebook pages!

Thank you for stopping by and please don't forget to send us your ideas, suggestions and comments.

~ Webmaster

Boom Mat Featured in On All Cylinders Blog

On All Cylinders BlogBoom Mat is featured in a new post on the "On All Cylinders" blog, powered by Summit Racing Equipment.

In the blog post "Easy Interior Makeover: Updating a Tired Interior with DEI Boom Mat and Procar Seats", the author, Jeff Huneycutt, touches on the benefits of installing the all-in-one solution that is DEI's Thermal & Acoustic Interior Kit in their 1978 Camaro.

To view the blog post, you can find it here:

DEI Offers Two New Products at AutoZone®

New DEI Products available at AutoZoneAVON LAKE, OHIO (AUGUST 2, 2016) – DEI, the leading brand for automotive thermal protection, is proud to announce the availability of two new thermal protection products at AutoZone® stores nationwide.

DEI’s Titanium Protect-A-Sleeve with LR Technology and Reflect-A-GOLD are now available at more than 4500 AutoZone stores joining DEI’s flagship thermal wrap product - Titanium Exhaust Wrap with LR Technology™ in the 2” x 50 ft. length.

The newly added Titanium Protect-A-Sleeve with LR Technology provides thermal protection for wires, lines and cables from the damaging effect of direct and radiant heat; up to 1800°F direct heat, and 2500°F radiant. It is available at AutoZone in the ½” ID x 4 ft. length (part #010065).

DEI’s EXO Series™ Exhaust Wrap Now in a 30’ roll

DEI EXO Series™ Exhaust and Pipe WrapAVON LAKE, OHIO (JULY 18, 2016) – DEI’s EXO Series™ Exhaust and Pipe Wrap provides superior heat protection for pipes and exhaust repeatedly exposed to abrasive or high impact environmental conditions.

Whether its hill climbing, rally or autocross racing, off-roading, dirt track racing, the EXO Series thermal wrap is the most durable and rugged wrap on the market.

Uniquely constructed with a dual layer design of high temp glass fiber encased in a 304 grade stainless steel exoskeleton, this wrap provides rugged good looks, durability and superior heat protection. The exoskeleton construction creates an air gap between the wrap and the pipe for additional cooling and allows the wrap to overlap and lock together for a tight, secure fit.

DEI Announces New ONYX Series™ Product Line

DEI ONYX Series™ Product LineAVON LAKE, OHIO (FEBRUARY 18, 2016) – The new ONYX Series™ products from DEI offer the highest level of heat protection for components that undergo severe duty or extreme heat.  This new line combines two technologically advanced textiles into a dual layer for maximum thermal control.  The outer layer with its rich black finish is made from heat treated glass fiber bonded with molten aluminum then formed into a tight weave for added strength and durability. The inner layer is a high temperature resistant fabric that is 89% Silica.  This all new product line provides heat protection for components up to 1350°F.