DEI

Design Engineering, Inc. (DEI) specializes in advanced thermal and acoustic management solutions for automotive, powersports, and industrial applications. For decades, enthusiasts and professionals have trusted DEI products to control heat, protect components, and reduce unwanted noise — improving both performance and comfort without compromise.

This collection brings together DEI’s core product lines, engineered with proven materials like woven silica, basalt fiber, and reflective mylar. Whether you’re building a dedicated track car, restoring a classic, or simply looking to preserve critical wiring and hoses, DEI offers reliable, easy-to-install solutions.

  • Exhaust wraps and tapes — manage under-hood temperatures and improve exhaust flow
  • Heat shields and sleeves — reflect radiant heat away from intakes, fuel lines, and electronics
  • Floor and firewall insulation — reduce cabin heat and road noise for a more comfortable ride
  • Sound damping materials — kill panel resonance and block airborne noise
  • Accessories — clamps, ties, and tapes for a clean, secure installation

Every product is built to withstand harsh under-hood conditions while remaining straightforward to install. From fiberglass header wrap to formable heat barriers, DEI gives you what you need to manage heat and sound exactly where it matters.

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One-inch wide roll of DEI Titanium exhaust wrap showing the textured brown lava rock fiber weave

$19.74

Low in stock
1-inch by 50-foot roll of DEI Titanium exhaust wrap with a woven lava rock fiber texture.

$47.62

Low in stock
DEI Titanium exhaust wrap 2-inch by 25-foot roll with four stainless steel locking ties

$42.94

Low in stock
2-inch wide roll of black glass fiber DEI exhaust wrap featuring integrated installation guide lines.

$21.21

In stock
DEI 10119 black glass fiber exhaust wrap roll with four stainless steel locking ties for high-heat automotive applications

$37.70

Low in stock
Roll of 2-inch wide DEI black glass fiber exhaust wrap, 100 feet long, featuring installation guide lines.

$135.47

Low in stock
DEI black glass fiber exhaust wrap roll, 2 inches wide by 50 feet long, showing the thermal insulation texture.

$70.79

In stock
1-inch by 50-foot roll of DEI black glass fiber exhaust wrap showing installation guide lines

$44.02

Out of stock
Roll of tan DEI glass fiber exhaust wrap measuring 2 inches wide by 15 feet long.

$20.64

Low in stock
Roll of 2-inch by 50-foot tan glass fiber DEI exhaust wrap for headers and downpipes

$66.50

In stock
2-inch by 50-foot roll of DEI Titanium exhaust wrap featuring a woven basalt lava rock fiber texture.

$79.58

In stock
DEI Titanium Exhaust Wrap Kit 10095 featuring two 50-foot rolls of wrap, stainless steel ties, and a locking tool.

$173.03

Out of stock
Two rolls of DEI Black Titanium exhaust wrap with twelve stainless steel locking ties and a locking tie installation tool.

$170.18

Low in stock
DEI Titanium knitted exhaust sleeve for 2.5 to 3 inch diameter piping with stainless steel locking ties and tool.

$35.79

Low in stock
DEI Titanium knit exhaust sleeve for 4-inch tubing with included stainless steel locking ties and installation tool.

$94.22

Low in stock
DEI 42x48 inch dimpled aluminum heat shield sheet with reflective surface and adhesive backing.

$70.15

In stock
DEI 36-inch titanium knit exhaust sleeve for 3-inch diameter tubing with included stainless steel locking ties.

$85.27

Low in stock
DEI 10040 Titanium knit exhaust sleeve for 4-inch tubing with stainless steel ties and installation tool.

$67.18

Low in stock
DEI 10039 black seaming tape roll for automotive insulation finishing and edge sealing

$31.23

Low in stock
DEI 12-inch Titanium Knit exhaust sleeve for 4-inch tubing shown with stainless steel locking ties and installation tool.

$41.54

Low in stock
DEI Titanium 2-inch diameter exhaust sleeve with stainless steel locking ties and installation tool.

$91.41

Low in stock
Roll of DEI 2-inch wide black titanium exhaust wrap featuring a tight-woven lava rock fiber texture.

$28.30

Out of stock
2-inch by 25-foot roll of DEI Black Titanium exhaust wrap featuring a textured black lava rock fiber weave.

$40.64

Out of stock
DEI Black Titanium exhaust wrap roll, 2 inches wide by 50 feet long, featuring a textured lava rock fiber weave.

$80.22

In stock
2-inch by 100-foot roll of DEI Black Titanium exhaust wrap featuring a proprietary lava rock weave and carbon fiber look.

$148.56

In stock

Can’t Find the Part You Need?

Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.

Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.

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