Proflow spark plug terminals are sold for those who like to make their own set or repair a damaged lead 
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The Proflow 8.5mm spark plug terminals feature “Dual Crimp” terminals. As the name implies, the terminals feature two crimps; one for the sleeve of the wire and another separate crimp to grasp the conductor. If you prefer you can still fold the core under the traditional way
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By having separate crimps, the conductor doesn’t need to be bent 180° and get squeezed between the terminal and sleeve. This individual conductor crimp produces a more secure crimp and there is less chance of spark arcing to the engine block or exhaust manifold through the boot!

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Raidant heat from exhaust can damage ignition boots and wire , Proflow spark plug boot shields are highly recommended which will protect up to 600c
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Features:

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• Dual-crimp terminals

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• Can be used as Straight terminal or slightly angled

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• Work with 7mm, 8mm 8.5mm diameter leads,  Any bigger you are required to buff down the outer insulator slightly

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