DRAG SPECIALTIES Spark Plugs - '57-'78 XL E18-6660SDS Passenger Floorboard Mount 10 mm thick for maximum

10 mm thick for maximum protection

WAVE® design is much lighter than a stock rotor

Consistently round and smooth shell

billet aluminum flanges and a titanium diamond shaped silencer with a carbon fiber diamond outlet tip

reducing the emission of hydrocarbons

DRAG SPECIALTIES Spark Plugs - '57-'78 XL E18-6660SDS Passenger Floorboard Mount 10 mm thick for maximumPlugs have a unique look with their 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 insulator eliminates flashover Nickel plated housing prevents oxidation and corrosion Multilayer gaskets and heat crimping process ensure a leak free, gas tight fit Copper core electrode prevents oxidation and corrosion and has good electrical and