N55 S55 N20 boots and Gold spring for tor b58 Conversion Kit（Includes cnc bracke

The boots are made of high temperature resistant silicone rubber, with high tear resistance and high resilience。The unique design prevents the boots from deforming during installation. Apply special grease to the contact area with the spark plug (OEM specified grease, not silicone grease)
The spring is made of pure gold plating, which has stronger electrical conductivity and prevents ozone oxidation and corrosion.Support all B and N Series plug. 
Harness Plug and play. The Cable is made of Teflon, which is resistant to high temperature 482F. 
For Early B58 Coil Versions