Review on 🛡️ JDMSPEED Black Shield Protective Sleeve by Justin Gerrero

These boots are a perfect fit. Best used with factory steel 8006 insulator. Some say they won't fit. It is not true. All you have to do is remove the rubber boot from the coil side and slide the insulator over the factory steel insulator toward the large side of the spark plug. Reinstall the rubber boot on the coil side by applying a small amount of dielectric grease to the coil wire and connector. Use a wire tie to protect the wire and sleeve from direct contact with manifolds, turbines, or elbows.