Description
Heat management is critical in high-performance applications where fuel lines, brake lines, and wiring harnesses are exposed to extreme underhood temperatures. The Design Engineering Vapor Block Sleeve provides a passive thermal barrier that prevents heat soak and fuel vaporization, protecting sensitive components without requiring active cooling systems. This bolt-on solution is ideal for racing engines, forced induction builds, and street performance vehicles where reliability under sustained heat is non-negotiable.
- 1-inch inner diameter
- 36-inch length (3 feet)
- Aluminized fiberglass construction
- Hose and wire compatible
- Universal fitment
- Vapor block thermal protection
- Sold individually






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