DRAG SPECIALTIES Spark Plugs - '75-'99 BT E18-6663SDS Faster v2 Leather Jacket Twin-stage core design for lower

Twin-stage core design for lower sound output and extended life of packing material

Completely restores air flow efficiency

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Cost-effective way to raise compression without expensive high-compression pistons or cylinder head work

The length measurement should be taken from inside of hook to opposite end inside of hook

DRAG SPECIALTIES Spark Plugs - '75-'99 BT E18-6663SDS Faster v2 Leather Jacket Twin-stage core design for lowerPlugs have a unique look with a black ceramic body and bold red logo script Insulator is made of 95% pure alumina, features strong resistance to heat shock and superior insulation Multi rib design of the insulator eliminates flashover Nickel plated housing prevents oxidation and corrosion Multi layer gaskets and heat crimping process ensure a leak free, gas tight seal Copper core electrode prevents oxidation and corrosion, has good electrical and heat