Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressuresPure copper core provides great heat transfer and helps maximize plug durabilityPlatinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition systemRibless insulator helps optimize plug to boot sealSome ACDelco Gold parts may have formerly appeared as ACDelco ProfessionalPremium aftermarket replacement partManufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
