Everything You Need to Know About DEI Exhaust Wrap
What It Is
DEI (Design Engineering, Inc.) Exhaust Wrap is a high-heat-resistant fabric designed to wrap exhaust components—headers, downpipes, and manifold sections—to reduce radiant heat, protect under-hood components, and enhance performance.
Types & Specifications
1. Titanium (LR Technology) Wrap
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Made from pulverized lava rock fibers (basalt) woven in a proprietary diagonal weave for high durability and heat resistance.
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Handle continuous direct heat up to 1,800°F (≈ 982 °C) and intermittent heat up to 2,500°F (≈ 1,370 °C).
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No pre-wetting required; won't shrink after installation.
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High resistance to vibration, oil or chemical exposure, and abrasion.
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Offers a modern carbon-fiber–like aesthetic.
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However, not recommended for wrapping titanium exhaust components—may lead to brittleness and cracking due to trapped heat.
Benefits of Wrapping
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Lower under-hood temperatures, potentially up to a 50% reduction.
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Improved exhaust flow and scavenging, aiding in enhanced engine performance and horsepower.
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Protects nearby components—such as wiring and hoses—from excessive heat exposure.
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Gives a sleek visual upgrade—titanium wrap offers a modern look without additional coatings.
Installation Tips & Precautions
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Use locking ties (usually stainless steel)—essential for a secure, clean installation.
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No pre-wetting needed for titanium wrap; not for glass fiber unless you're using coating.
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Plan thoroughly—once heat-cycled, wraps are difficult to reposition or remove.
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Avoid wrapping catalytic converters—excess heat retention may reduce their effectiveness and lifespan.
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If water or oil seeps into the wrap, allow it to dry thoroughly (e.g., running the engine). For added moisture protection, use HT Silicone coating on glass fiber wraps.
🔧 DEI Titanium Exhaust Wrap – Key Features
| Feature | Titanium Wrap (Basalt / Lava Rock) |
|---|---|
| Max Direct Heat | ~1,800°F (continuous) |
| Intermittent Heat | ~2,500°F |
| Flexibility & Install Ease | Highly pliable, no pre-wet needed |
| Durability | Excellent – resists oil, abrasion, vibration |
| Moisture Risk | Moderate – less than fiberglass, but still present |
| Recommended Use | High-performance, turbocharged, or race applications |
| Not Suitable For | Titanium exhaust systems (risk of brittleness) |
Final Thoughts
DEI Exhaust Wrap is a versatile and effective way to manage heat in high-performance or everyday applications:
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Choose Titanium wrap for the best resilience, heat performance, and aesthetics—ideal for demanding environments.