[ROTARY] NGK Spark Plug Kit

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 colder applications, but may be necessary in high compression applications. Trivalent metal plating provides superior anti-corrosion and anti-seizing properties Corrugated ribs prevent flashover Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer Copper core aids in heat removal Triple seals prevent leakage We currently offer two different spark plug kits for the FD3S RX7: OEM Spec 2x BUR7EQP 2x BUR9EQP All 9s 4x BUR9EQP