• DEI, Ny-Trex, CryO2, Boom Mat, Radiator Relief Catalog


    DEI's new full color catalog is packed with 56 pages of tested and proven thermal acoustic performance products with the flagship brands enthusiasts have learned to trust for quality and performance.
    Read More


    NyTrex's critically acclaimed Triple Threat delivery system is now available for the Camaro 5 V6.
    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

Performance & Hotrod Business features Boom Mat

Performance and Hotrod Business LogoPerformance and Hotrod Business Magazine has published an article featuring the Boom Mat line of thermal acoustic control products. The article touches on all the main points of the Boom Mat "Science of Noise" and features many installation photos showing Boom Mat product in action. A must read if you're interested in learning more about the benefits of sound damping and acoustic control products.

Read more at:

Boom Mat Joins the Craftsman Restoration Rollout

The guys from Craftsman tools and Roadster Shop have teamed up to turn a '69 Chevy C/10 into a performance muscle truck fit for autocross. You can follow along with their build on the web series Craftsman Restoration Roll-out at as they turn the old C10 into the ultimate muscle truck.

The web series currently features 17 professionally produced episodes that cover everything from meeting the guys of Roadster Shop to finding the truck, disassembly, rust repair, concept design, body assembly, wiring and plumbing, and finally, interiors.

New Design Engineering, Inc. Catalog

DEI 2014 Product CatalogDEI's new 2014 full color catalog is packed with 56 pages of tested and proven thermal acoustic performance products with the flagship brands enthusiasts have learned to trust for quality and performance – DEI thermal tuning and Boom Mat sound control products, CryO2™ cryogenic cooling systems and Ny-Trex nitrous oxide systems and accessories, and DEI’s Radiator Relief performance cooling system additives are just to name a few. Divided into 15 easy navigable sections, the catalog features full color product photos accompanied with a full description of product benefits and features, color and size options, and product numbers for easy ordering. Throughout are helpful hints, testimonials, callouts, how-to images and test results to make this catalog a useful resource year-round.

This year, DEI boasts 20 new products including an expansion of DEI’s Titanium family of thermal product that offers maximum protection of sensitive components - Titanium Protect-A-Sleeve and 8” Protect-A-Boots.

Go Faster & Keep Interiors Cool & Quiet

DEI offers solutions. Period.
Is it too slow? We make it go faster...
Is it too hot? We cool it down...
Is it too loud and uncomfortable? We make it cool and quiet...

DEI Exhaust Wrap ProductsDesign Engineering, Inc.™ is the foremost suppliers of thermal tuning product featuring products for racers, street performance enthusiasts, and hobbyists alike. In addition to supplying the performance aftermarket with thermal tuning products, Design Engineering serves the needs of the powersports, marine, industrial and commercial industry markets the world over. David Markley, President of Design Engineering, Inc., says "At Design Engineering, Inc., YOU the customer, are behind every decision we make. We try to look at every product and service we offer from your perspective. We use the phrase 'What's in it for you.' We strive every day to bring you innovative, quality products that exceed your expectations.