RaceFlux Basalt Fiber Spark Plug Boot Protector Sleeves

Stop cooking your plug wires: these basalt fiber sleeves slide over spark plug boots and wires, insulating them from header heat that hardens boots, breaks down insulation, and causes misfires. Basalt fiber takes extreme temperatures without the itch and fray of fiberglass.

Key Features

• Basalt fiber construction for extreme heat resistance
• Protects spark plug boots and wires from header heat
• Prevents heat-hardened boots and misfires

Fitment & Compatibility

• Slides over standard spark plug boots and wires — see the dropdown for quantity options
• Common uses: headers-equipped V8s, turbo engines, any build with plug wires near exhaust