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Surface Gap Plugs are Nearly Immune to Pre-Ignition, and Usually Require a Special High Energy Ignition System. They Can be Susceptible to Fouling, Especially in bColder Applications, but May be Necessary in High Compression Applications.Trivalent Metal...

Surface Gap Plugs are Nearly Immune to Pre-Ignition, and Usually Require a Special High Energy Ignition System. They Can be Susceptible to Fouling, Especially in bColder Applications, but May be Necessary in High Compression Applications.Trivalent Metal...

Superior quality gasket sets from Athena S.P.ASteel core materials feature high springback and superior tensile strengthRevolutionary transparent coating guarantees a perfect seal even at extremely high temperaturesHigh-temperature blue silicone beading...

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot

Superior construction for serious powerNGK makes plugs for almost any type of application and riding styleVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot