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Pro-Heat Guard
If your exhaust manifolds or headers don't offer a lot of clearance for the plug wires, MSD's Pro-Heat Guard will provide the extra protection you need. This tough sleeving is made up of a thick glass woven core that resists temperatures up to 1,000°F. A silicone rubber coating surrounds the core adding protection against abrasion and heat. The sleeving has a 3/8" inner diameter so it easily slides over most spark plug wires.

Pro-Heat Guard, Roll of 25 feet -
PN 3411
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