According to Taylor, they are designed for 8mm diameter wires. I tried using them with a Moroso 8mm kit. The boots ran well with the wires lubricated with silicon grease. The terminals are well crimped. But plastic bushings for placing the leads in the coils cannot be fitted. I even designed and 3D printed a sleeve holder to nail them to the crimped pin. Turning them on 90% worked, then they wouldn't budge and I ended up tearing the insulation. Now the $100 I spent on wires and this kit are in the trash.
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